JPS6156313B2 - - Google Patents
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- Publication number
- JPS6156313B2 JPS6156313B2 JP58028237A JP2823783A JPS6156313B2 JP S6156313 B2 JPS6156313 B2 JP S6156313B2 JP 58028237 A JP58028237 A JP 58028237A JP 2823783 A JP2823783 A JP 2823783A JP S6156313 B2 JPS6156313 B2 JP S6156313B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- ceramic
- thermal
- sample
- sprayed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- 239000000463 material Substances 0.000 claims description 31
- 239000000919 ceramic Substances 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical class [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 10
- 238000007751 thermal spraying Methods 0.000 description 10
- 238000000576 coating method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229940098458 powder spray Drugs 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 239000013077 target material Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- -1 cermets Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910002078 fully stabilized zirconia Inorganic materials 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910003564 SiAlON Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Description
【発明の詳細な説明】
本発明はセラミツク系針状繊維を含有する溶射
材料に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal spray material containing ceramic needle fibers.
従来より溶射材料を溶融させ、目的の素材表面
に吹き付け、コーテイングする方法は広く利用さ
れている。 BACKGROUND ART Conventionally, a method of melting a thermal spray material and spraying it onto the surface of a target material to coat it has been widely used.
しかしながら各種溶射材料を目的の素材表面に
吹き付けコーテイングすることにより得られる溶
射皮膜は必ずしもその密着力が強くなく、往々に
してクラツクや経時剥離を発生しがちであつた。
この素材一皮膜間の密着力は素材の材質、溶射前
処理、溶射材料の種類などの諸因にも左右される
が、これらの点をすべて良好に満足する場合にも
前述のクラツクや経時剥離を完全に回避すること
はきわめて困難であつた。 However, thermal spray coatings obtained by spraying various thermal spray materials onto the surface of a target material do not necessarily have strong adhesion and are often prone to cracking or peeling over time.
The adhesion between the material and the coating depends on various factors such as the material, the thermal spraying pretreatment, and the type of thermal spraying material, but even if all of these points are satisfied, the above-mentioned cracks and peeling over time may occur. It was extremely difficult to avoid this completely.
本発明は上述の点に鑑み成されたものであつ
て、従来溶射法において用いられている金属、セ
ラミツク、サーメツト、樹脂などの粉末溶射材料
に、窒素珪素ウイスカーもしくは炭化珪素ウイス
カーなどのセラミツク系針状繊維を添加配合して
おくことにより、目的とする素材の種類を問わず
強固な密着力を有する溶射皮膜の形成が可能な溶
射材料を提供しようとするものである。 The present invention has been made in view of the above-mentioned points, and uses ceramic needles such as nitrogen silicon whiskers or silicon carbide whiskers in powder spraying materials such as metals, ceramics, cermets, and resins that have been conventionally used in thermal spraying methods. The present invention aims to provide a thermal spray material that can form a thermal spray coating with strong adhesion regardless of the type of target material by adding and blending fibers.
以下、本発明について具体的かつ詳細に説明す
る。 Hereinafter, the present invention will be explained specifically and in detail.
すなわち、本発明の構成要旨とするところは粉
末溶射材料と、セラミツク系針状繊維を造粒した
ことを特徴とするセラミツク系針状繊維を含有す
る溶射材料である。 That is, the gist of the present invention is a powder thermal spray material and a thermal spray material containing ceramic needle fibers characterized by granulating ceramic needle fibers.
ここで粉末溶射材料としてはたとえばアルミニ
ウム、銅、ニツケル、コバルト、タングステン、
モリブデン及びその他合金などの金属類Al2O3、
ZrO2、MgO、TiO2、Cr2O3、MgO・SiO2、
2MgO・2Al2O3・SiO2、2MgO・SiO2、ZrSiO4、
MgTiO3、MgZrO3、MgAl2O4など耐熱性、低膨
脹性、電気特性、磁気特性を有するセラミツク類
更に40％Co＋ZrO2混合物、40％Ni＋Al2O3混合
物、12％Co＋WC混合物などのサーメツト類、エ
ポキシ、ポリアミドなどで代表される樹脂類など
溶射可能なものである。 Examples of powder spray materials include aluminum, copper, nickel, cobalt, tungsten,
Metals such as molybdenum and other alloys Al 2 O 3 ,
ZrO 2 , MgO, TiO 2 , Cr 2 O 3 , MgO・SiO 2 ,
2MgO・2Al2O3・SiO2 , 2MgO・SiO2 , ZrSiO4 ,
Ceramics with heat resistance, low expansion, electrical properties, and magnetic properties such as MgTiO 3 , MgZrO 3 , and MgAl 2 O 4 , and cermets such as 40% Co + ZrO 2 mixture, 40% Ni + Al 2 O 3 mixture, and 12% Co + WC mixture , epoxy, polyamide, and other resins that can be thermally sprayed.
また、セラミツク系針状繊維としては耐熱衝撃
性、低膨脹性、耐熱性、耐化学性等種々の特性の
ある窒素珪素もしくは炭化珪素よりなり、アスペ
クト比の非常に大きい針状単結晶であるセラミツ
クウイスカーが最適であり、この他にアルミナウ
イスカーなど他のセラミツクウイスカーや、炭素
珪素繊維、炭素繊維、ガラス繊維セラミツク連続
繊維を細断した短繊維なども適用可能である。 Ceramic acicular fibers are made of silicon nitrogen or silicon carbide, which have various properties such as thermal shock resistance, low expansion, heat resistance, and chemical resistance, and are acicular single crystals with a very large aspect ratio. Whiskers are most suitable, but other ceramic whiskers such as alumina whiskers, short fibers obtained by shredding carbon silicon fibers, carbon fibers, glass fiber ceramic continuous fibers, etc. can also be used.
特に上記窒化珪素もしくは炭化珪素のウイスカ
ーとしてはたとえば出願人が既に出願済みの特願
昭56−83095号（特開昭57−196711号）、特願昭56
−118878号、特願昭57−55196号、特願昭57−
96791号、及び特願昭57−233349号により得られ
る窒素珪素ウイスカーあるいは炭化珪素ウイスカ
ーを用いるのが望ましい。 In particular, examples of the silicon nitride or silicon carbide whiskers include Japanese Patent Application No. 56-83095 (Japanese Unexamined Patent Publication No. 57-196711), which has already been filed by the applicant.
−118878, Patent Application No. 55196, Patent Application No. 1983-
It is desirable to use nitrogen silicon whiskers or silicon carbide whiskers obtained according to No. 96791 and Japanese Patent Application No. 57-233349.
更に前述の粉末溶射材料とセラミツク系針状繊
維の配合割合は粉末溶射材料（100wt％）に対し
てセラミツク系針状繊維を１〜50wt％、好まし
くは３〜25wt％配合するが、この際、この粉末
溶射材料とセラミツク系針状繊維をカルボキシメ
チルセルロース（CMC）などのバインダーで造
粒しておくことが必要である。 Furthermore, the blending ratio of the above-mentioned powder spray material and ceramic needle fiber is 1 to 50 wt%, preferably 3 to 25 wt%, of the ceramic needle fiber to the powder spray material (100 wt%). It is necessary to granulate this powder spray material and ceramic needle fibers with a binder such as carboxymethyl cellulose (CMC).
なお、粉末溶射材料（100wt％）に対するセラ
ミツク系針状繊維の配合量が1wt％以下ではセラ
ミツク系針状繊維の添加効果がなく、50wt％以
上では溶射材料の特性が変わる。要するに上述数
値限定のごとくセラミツク針状繊維配合量が１〜
50wt％、好ましくは３〜25wt％であれば、溶射
材料の特性とセラミツク系針状繊維の特性がいず
れも損われることなく複合効果が発揮される。 It should be noted that if the amount of ceramic acicular fibers added to the powder thermal spray material (100 wt%) is less than 1 wt%, there is no effect of adding ceramic acicular fibers, and if it exceeds 50 wt%, the properties of the thermal spray material will change. In short, as stated above, the content of ceramic needle fibers is 1 to 1.
When the content is 50 wt%, preferably 3 to 25 wt%, a composite effect can be achieved without impairing the properties of the thermal spray material and the ceramic needle fibers.
CMCなどのバインダーは造粒可能な範囲の少
量でよく、粒度は10μ〜500μ、好ましくは50μ
〜100μぐらいに調整すれば溶射しやすい。 The binder such as CMC may be used in a small amount within the range that can be granulated, and the particle size is 10μ to 500μ, preferably 50μ.
It will be easier to thermal spray if adjusted to ~100μ.
そして上述のごとく所定の割合で配合された粉
末溶射材料とセラミツク系針状繊維の造粒物を溶
射法により目的とする物品の基体表面に吹き付け
コーテイングするものであるが、この物品の基体
を構成する材質としてはSiC、Si3N4、Si2ON2サ
イアロンZrO2、Al2O3、コージエライト、ムライ
ト磁器などの耐熱衝撃低熱膨脹のセラミツク耐火
材およびセラミツク繊維などを用いた耐火断熱材
料や鉄、ステンレス、アルミニウムなどの金属材
料が適用される。 Then, as mentioned above, the powder spray material and ceramic acicular fiber granules mixed in a predetermined ratio are sprayed and coated on the surface of the target article by a thermal spraying method. Examples of materials include SiC, Si 3 N 4 , Si 2 ON 2 SiAlON ZrO 2 , Al 2 O 3 , cordierite, mullite porcelain, and other heat-shock resistant and low thermal expansion ceramic refractories and fire-resistant insulation materials using ceramic fibers, etc. Metal materials such as , stainless steel, and aluminum are applicable.
かくのごとくして目的とする物品の基体表面上
に形成せしめられた溶射皮膜はウイスカー量が１
〜50wt％である場合金属もしくはセラミツクま
たはサーメツト、樹脂等の粉末溶射材料の具備す
る種々の特性はそのまま維持されておりそれに加
えて窒化珪素もしくは炭化珪素のセラミツクの具
備する耐熱衝撃性、耐食性、電気特性、耐摩耗性
などをも具備することになる。 The sprayed coating thus formed on the substrate surface of the target article has a whisker content of 1.
~50wt%, the various properties of powder sprayed materials such as metals, ceramics, cermets, and resins are maintained, and in addition, the thermal shock resistance, corrosion resistance, and electrical properties of silicon nitride or silicon carbide ceramics are maintained. It also has characteristics such as wear resistance.
しかもこれらのセラミツク系繊維、特に
Si3N4、SiC、Al2O3などのウイスカーは機械的強
度がきわめて大きく溶射によつて形状が損われる
ことがないので前記皮膜は同ウイスカーを混入し
ない場合にくらべ、格段の機械的強度をも具備す
る。 Moreover, these ceramic fibers, especially
Whiskers such as Si 3 N 4 , SiC, and Al 2 O 3 have extremely high mechanical strength and their shape will not be damaged by thermal spraying, so the above-mentioned coating has a much higher mechanical strength than when whiskers are not mixed in. It is also equipped with.
すなわち、同ウイスカーは溶射皮膜中で繊維補
強複合材料の効果が顕著に示され、また密着力が
向上せしめられ、素材によつては素材と皮膜との
熱膨脹差を縮少する効果も奏するのでクラツクが
入ることもなくなり、経時剥離も解消される。 In other words, the whiskers have a remarkable effect on fiber-reinforced composite materials in thermal sprayed coatings, improve adhesion, and depending on the material, also have the effect of reducing the difference in thermal expansion between the material and the coating, making it a cracking material. It also eliminates the problem of peeling over time.
尚、炭化珪素繊維、炭素繊維、ガラス繊維、セ
ラミツク連続繊維を細断して得られる短繊維など
を溶射材料に複合した場合でも複合しない場合に
比べ格段の繊維補強効果がみられ、経時剥離など
の問題も減少する。 Furthermore, even when thermal sprayed materials are composited with short fibers obtained by shredding silicon carbide fibers, carbon fibers, glass fibers, or ceramic continuous fibers, a marked fiber reinforcing effect is seen compared to when no composite is used, and there are problems such as peeling over time. problems are also reduced.
以下実験例を示す。 An experimental example is shown below.
実験例 １
本発明による溶射材料としてジルコニア
（Zro2・8w／oY2O3）90体積部に炭化珪素ウイス
カーを10体積部の割合で均一に混合しCMC1重量
部を加えて粒度50〜100μｍに造粒した試料を調
整した。（以下この試料を試料とする。）次に同
じジルコニア（ZrO2・8w／oY2O3）90体積部に
同じ炭化珪素ウイスカーを10体積部の割合で一切
の造粒を行なわないで単に均一を混合した試料を
比較実験のため調整した。（以下この試料を試料
とする。）さらに比較のため上記ジルコニア
（ZrO2・8w／oY2O3）単体の試料を用意した。（以
下この試料を試料とする。）
試料、試料、試料を同一条件下で、かつ
一切のアンダーコートを排し、グリツトブラスト
のみによる前処理を行なつた長辺100mm、短辺500
mm、厚さ2.5mmのJIS規格によるSS−41鉄板上へ
プラズマ溶射を行なつた。溶射膜の厚さは約0.1
mmであつた。このようにして作成された被溶射体
についてその溶射膜の性質を溶射膜上に径17mm、
重量10.5ｇのアルミナボールを300mmの高さより
自然落下衝突させて調べた。その結果試料の被
溶射体では300回の衝突ではじめて径５mm程度の
局部的な剥離が衝撃の加えられた部分に現われた
のに対して試料の溶射皮膜では80回以下の衝撃
で溶射面全面に剥離が発生し波及することが確認
された。また試料の場合溶射開始後数秒〜数10
秒にて溶射皮膜の剥離が始まり、以後溶射が不可
能になることが度々観察されたのに対して試料
ではこのような現象は皆無であつた。Experimental Example 1 As a thermal spray material according to the present invention, 90 parts by volume of zirconia (Zro 2 8w/oY 2 O 3 ) and 10 parts by volume of silicon carbide whiskers were uniformly mixed, and 1 part by weight of CMC was added to make the particle size 50 to 100 μm. A granulated sample was prepared. (Hereinafter, this sample will be used as a sample.) Next, 90 parts by volume of the same zirconia (ZrO 2 8w/oY 2 O 3 ) and 10 parts by volume of the same silicon carbide whiskers were simply uniformly mixed without any granulation. A mixed sample was prepared for comparative experiments. (Hereinafter, this sample will be referred to as a sample.) Furthermore, for comparison, a sample of the above-mentioned zirconia (ZrO 2 .8w/oY 2 O 3 ) alone was prepared. (Hereinafter, this sample will be referred to as the sample.) Sample, sample, sample under the same conditions, without any undercoat, and pretreated only by grit blasting.Long side 100 mm, short side 500 mm.
Plasma spraying was performed on an SS-41 steel plate according to the JIS standard with a thickness of 2.5 mm. The thickness of the sprayed film is approximately 0.1
It was warm in mm. The properties of the sprayed film of the object to be thermally sprayed created in this way were determined by applying a diameter of 17 mm on the sprayed film.
An alumina ball weighing 10.5g was dropped from a height of 300mm and collided with it. As a result, local peeling of about 5 mm in diameter appeared on the impact area for the first time after 300 impacts on the sample thermally sprayed object, whereas on the sample thermally sprayed coating, it took less than 80 impacts to appear on the entire surface of the thermally sprayed surface. It was confirmed that peeling occurred and spread. In addition, in the case of samples, a few seconds to several tens of seconds after the start of thermal spraying.
While it was often observed that the thermal spray coating began to peel off within seconds and thermal spraying was no longer possible thereafter, such a phenomenon did not occur with the sample.
試料の溶射材料は溶射装置供給系内での流れ
が悪く、溶射は不可能であつた。 The thermal spraying material of the sample had poor flow within the thermal spraying equipment supply system, and thermal spraying was impossible.
一般に金属材料上へセラミツク粉末を溶射する
場合あらかじめ適当な合金材料でアンダーコート
をしておかないと溶射皮膜と基板の密着力が十分
でなく容易に剥離が起る。 Generally, when ceramic powder is thermally sprayed onto a metal material, unless it is undercoated with a suitable alloy material in advance, the adhesion between the thermally sprayed coating and the substrate will not be sufficient and peeling will easily occur.
この問題の対策として合衆国特許4055705等が
考案された。 As a solution to this problem, US Patent No. 4,055,705, etc. were devised.
またこの問題は本実験においても試料の場合
に見られるように確認された。試料すなわち本
発明による溶射材料を用いるとこのようなアンダ
ーコートを省略しても金属基板とセラミツク溶射
皮膜の間に強い密着性を得ることが可能である。 This problem was also confirmed in this experiment as in the case of the sample. When the sample, that is, the thermal spray material according to the present invention is used, it is possible to obtain strong adhesion between the metal substrate and the ceramic thermal spray coating even if such an undercoat is omitted.
実験例 ２
本発明による溶射材料として完全安定化ジルコ
ニア（ZrO2・12w／oY2O3）80体積部に対し窒化
珪素ウイスカーを20体積部の割合で均一に混合し
CMC1重量部を加えて粒度50〜100μｍに造粒調
整した試料をアルミナセツター（100mm口、５mm
厚）上に0.5〜１mmの厚さにプラズマ溶射した。
この被溶射体に酸化雰囲気中、1500℃の加熱サイ
クルを加えたところ400回の加熱にても何ら剥離
等は認められなかつた。Experimental Example 2 As a thermal spray material according to the present invention, silicon nitride whiskers were uniformly mixed at a ratio of 20 parts by volume to 80 parts by volume of fully stabilized zirconia (ZrO 2 12w/oY 2 O 3 ).
Add 1 part by weight of CMC to granulate the sample to a particle size of 50 to 100 μm.
(thickness) was plasma sprayed to a thickness of 0.5 to 1 mm.
When this thermal sprayed object was subjected to a heating cycle of 1500°C in an oxidizing atmosphere, no peeling was observed even after 400 heating cycles.
これに対し同じくアルミナセツターに同じ完全
安定化ジルコニアをウイスカーの複合なしにプラ
ズマ溶射した場合150回前後のサイクルより剥離
が始まり200回では顕著となつた。この現象は本
発明によるウイスカー複合の効果により溶射皮膜
の熱膨脹係数が下り基板のそれとの不整合が減少
したものと考えられる。 On the other hand, when the same fully stabilized zirconia was plasma sprayed on the alumina setter without whisker composite, peeling started around 150 cycles and became noticeable at 200 cycles. This phenomenon is thought to be due to the effect of the whisker composite according to the present invention, which lowers the coefficient of thermal expansion of the sprayed coating and reduces mismatch with that of the substrate.
Claims (1)
したことを特徴とするセラミツク系針状繊維を含
有する溶射材料。1. A thermal spray material containing ceramic acicular fibers, which is obtained by granulating a powder thermal spray material and ceramic acicular fibers.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58028237A JPS59153877A (en) | 1983-02-22 | 1983-02-22 | Spraying material containing needlelike ceramic fiber |
| DE8484301082T DE3467775D1 (en) | 1983-02-22 | 1984-02-20 | Spraying materials containing ceramic needle fiber and composite materials spray-coated with such spraying materials |
| EP84301082A EP0118249B1 (en) | 1983-02-22 | 1984-02-20 | Spraying materials containing ceramic needle fiber and composite materials spray-coated with such spraying materials |
| US06/582,174 US4594106A (en) | 1983-02-22 | 1984-02-21 | Spraying materials containing ceramic needle fiber and composite materials spray-coated with such spraying materials |
| CA000447950A CA1227359A (en) | 1983-02-22 | 1984-02-21 | Spraying materials containing ceramic needle fiber and composite materials spray-coated with such spraying material |
| ES529965A ES529965A0 (en) | 1983-02-22 | 1984-02-22 | A COMPOSITION TO SPRAY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58028237A JPS59153877A (en) | 1983-02-22 | 1983-02-22 | Spraying material containing needlelike ceramic fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59153877A JPS59153877A (en) | 1984-09-01 |
| JPS6156313B2 true JPS6156313B2 (en) | 1986-12-02 |
Family
ID=12242980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58028237A Granted JPS59153877A (en) | 1983-02-22 | 1983-02-22 | Spraying material containing needlelike ceramic fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59153877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208024A (en) * | 1996-02-02 | 1997-08-12 | Nippon Conveyor Kk | Trough-shaped roller for curve conveyor |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174862A (en) * | 1984-02-20 | 1985-09-09 | Tateho Kagaku Kogyo Kk | Composite spraying material containing ceramic whisker |
| JPS6163579A (en) * | 1984-09-05 | 1986-04-01 | ハリマセラミック株式会社 | Carbon containing brick |
| JP4539014B2 (en) * | 2002-11-26 | 2010-09-08 | 東海カーボン株式会社 | Oxidation resistant C / C composite and method for producing the same |
| CH698017B1 (en) * | 2005-04-29 | 2009-04-30 | Hort Coating Ct Sa | A method for applying a coating to a kitchen utensil and kitchen appliance. |
| DE102011052121A1 (en) * | 2011-07-25 | 2013-01-31 | Eckart Gmbh | Coating process using special powder coating materials and use of such coating materials |
| WO2015073195A1 (en) | 2013-11-15 | 2015-05-21 | United Technologies Corporation | Method of manufacturing fiber reinforced barrier coating |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5479188A (en) * | 1977-12-08 | 1979-06-23 | Babcock Hitachi Kk | Platelike catalyst |
| JPS5730495A (en) * | 1980-07-30 | 1982-02-18 | Onkyo Corp | Diaphragm for speaker and its manufacture |
-
1983
- 1983-02-22 JP JP58028237A patent/JPS59153877A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5479188A (en) * | 1977-12-08 | 1979-06-23 | Babcock Hitachi Kk | Platelike catalyst |
| JPS5730495A (en) * | 1980-07-30 | 1982-02-18 | Onkyo Corp | Diaphragm for speaker and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208024A (en) * | 1996-02-02 | 1997-08-12 | Nippon Conveyor Kk | Trough-shaped roller for curve conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59153877A (en) | 1984-09-01 |
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