JPH02111665A - Production of dissolution loss-resistant bn ceramics - Google Patents
Production of dissolution loss-resistant bn ceramicsInfo
- Publication number
- JPH02111665A JPH02111665A JP63264967A JP26496788A JPH02111665A JP H02111665 A JPH02111665 A JP H02111665A JP 63264967 A JP63264967 A JP 63264967A JP 26496788 A JP26496788 A JP 26496788A JP H02111665 A JPH02111665 A JP H02111665A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- oxygen
- water
- ceramics
- insoluble
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000004090 dissolution Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 31
- 239000001301 oxygen Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 3
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 2
- 239000000155 melt Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 3
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 2
- 239000011147 inorganic material Substances 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 150000004767 nitrides Chemical class 0.000 abstract description 2
- 229910021332 silicide Inorganic materials 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- -1 B2O3 compound Chemical class 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 229910007277 Si3 N4 Inorganic materials 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 239000000156 glass melt Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 229910016459 AlB2 Inorganic materials 0.000 description 1
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- 229910021359 Chromium(II) silicide Inorganic materials 0.000 description 1
- 229910016006 MoSi Inorganic materials 0.000 description 1
- 229910001327 Rimmed steel Inorganic materials 0.000 description 1
- 229910033181 TiB2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 101000693961 Trachemys scripta 68 kDa serum albumin Proteins 0.000 description 1
- 229910008814 WSi2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/583—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、金属あるいは無機材料の溶融体に対する耐溶
損性に優れたＢＮ系セラミツクの製造方法に係わるもの
である。DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Application> The present invention relates to a method for manufacturing BN-based ceramics having excellent corrosion resistance against melts of metals or inorganic materials.
〈従来の技術〉
ＢＮ系セラミック焼結体は、その原料粉末として微粉砕
されたＢＮ粉末が用いられる。<Prior Art> A BN-based ceramic sintered body uses finely ground BN powder as its raw material powder.
８Ｎ粉末は、その粉砕工程で特別な場合を除いて、工業
的な方法では不可避的に酸化され、粉末中に酸素が混入
される。8N powder is inevitably oxidized in industrial methods, except in special cases during the grinding process, and oxygen is mixed into the powder.
これらの酸素で、水溶解性の化合物、例えば８２０３等
の酸化物の形で存在するものは、水洗あるいはアルコー
ルで洗うことにより除去することができるが、水あるい
はアルコールで洗っても除去できない酸素弁も存在する
。Among these oxygen compounds, water-soluble compounds, such as those present in the form of oxides such as 8203, can be removed by washing with water or alcohol, but oxygen valves that cannot be removed by washing with water or alcohol. also exists.
これらの酸素は粉末中で、どの様な形態で存在するかは
不明であるが、少くとも、これらは焼成過程で一部Ｂ２
０３あるいはＢ２Ｏ３化合物に変化する。It is unknown in what form these oxygens exist in the powder, but at least some of them are converted into B2 during the firing process.
03 or B2O3 compound.
焼成組織中に８２０３ 、あるいはこれらの化合物が存
在すると、金属やガラス溶融体に激しく浸蝕される。If 8203 or any of these compounds is present in the fired structure, it will severely corrode the metal or glass melt.
金属やガラスの溶融体に対して耐蝕性を良くするために
は組織中に８２０３ 、あるいはこれらの化合物が現出
するのを防ぐ必要がある。In order to improve corrosion resistance against molten metals and glass, it is necessary to prevent 8203 or these compounds from appearing in the tissue.
〈発明が解決する問題点〉
本発明は、かかる問題点に鑑みてなされたもので、その
目的とする所は、酸素の残る粉末を使用しながら、なお
かつ焼成１］織中にＢ２Ｏ３あるいは、Ｂ２０３系化合
物が発生するのを防止することができるＢＮ系セラミツ
クの新しい製造法を提供するにある。<Problems to be Solved by the Invention> The present invention has been made in view of the above-mentioned problems, and its purpose is to use a powder that retains oxygen, and to reduce the amount of B2O3 or B203 during weaving. The object of the present invention is to provide a new method for producing BN ceramics that can prevent the generation of BN-based ceramics.
く問題点を解決するための手段〉
本発明者は、上記問題点に関して鋭意研究を行った結果
、次の様な知見を得るに到った。Means for Solving the Problems> As a result of intensive research into the above problems, the inventors have come to the following knowledge.
■ 水不溶性の酸素を含むＢＮ粉末を使用して耐溶損性
ＢＮ系セラミックを’ｌ造するに際し、該粉末と共に金
属あるいはセラミックから成る該酸素の還元成分を混合
、焼成すると、溶湯に対する耐蝕性が著しく向上するこ
と。■ When manufacturing a corrosion-resistant BN-based ceramic using water-insoluble oxygen-containing BN powder, if a metal or ceramic reducing component of the oxygen is mixed with the powder and fired, the corrosion resistance against molten metal increases. to improve significantly.
■ 酸素の存在は、本来耐蝕性に対してはマイナスの方
向に作用するものであるが、還元成分と共に焼成すると
、これがプラスの方向に転化され、むしろ酸素の存在は
、存在しない場合よりも、耐溶損性に関しては有利に作
用すること。■ The presence of oxygen originally has a negative effect on corrosion resistance, but when fired with a reducing component, this is converted into a positive direction, and in fact, the presence of oxygen has a negative effect on corrosion resistance. It has an advantageous effect on corrosion resistance.
■ 水不溶性酸素と還元成分の共存下では、本来焼結性
の悪いＢＮ粉末も、焼結性が向上し、常圧焼結でも強度
が著しく高くなること。■ In the coexistence of water-insoluble oxygen and reducing components, even BN powder, which originally has poor sintering properties, improves its sinterability and its strength becomes significantly higher even when sintered under normal pressure.
■ ＢＮ粉末中の水不溶性酸素の母は、１〜１５％が好
しいこと。(2) The water-insoluble oxygen content in the BN powder is preferably 1 to 15%.
■ 還元成分としては、Ａｅ、Ｓｉ、ｃａ、Ｍｇ、Ｔｉ
。■ Reducing components include Ae, Si, ca, Mg, and Ti.
.
Ｚｒ、Ｃｒ、Ｗ、ＭＯ等の金属あるいは、これらの化合
物から成るセラミックが好しいこと。Ceramics made of metals such as Zr, Cr, W, MO, or compounds of these are preferred.
以上の知見を得た。The above findings were obtained.
本発明は、以上の知見を基になされたものである。The present invention has been made based on the above findings.
く作 用〉
８Ｎ粉末中に存在する酸素は、通常焼成過程で８２０３
、あるいは８２０３化合物に転化して焼成組織中に表わ
れる。Effect〉 Oxygen present in 8N powder usually becomes
, or converted into 8203 compound and appears in the fired structure.
一方還元成分が共存する状態では、酸素はこれらの成分
を優先的に結合し、Ｂ２Ｏ３に比して高融点、高耐蝕性
化合物に転化される。On the other hand, in the presence of reducing components, oxygen preferentially binds these components and is converted into a compound with a higher melting point and higher corrosion resistance than B2O3.
酸素が存在するにもかかわらず、むしろ本発明では、耐
溶損性が向上するのは、以上の様な理由によるものと思
われる。It is thought that the reason why the melting resistance is improved in the present invention despite the presence of oxygen is due to the reasons mentioned above.
本発明の水不溶性酸素とは、水あるいは水と相溶性のあ
る液体で、洗浄しても除去できない酸素成分のことを意
味し、これらがＢＮ粉末中でどの様な形態で存在するか
は不明であるが、少くともＢ２Ｏ３系の水溶性化合物で
ないことだけは確かである。The water-insoluble oxygen of the present invention refers to an oxygen component that cannot be removed even by washing in water or a liquid compatible with water, and it is unknown in what form these exist in the BN powder. However, at least it is certain that it is not a B2O3-based water-soluble compound.
Ｂ２０３あるいはこれらの化合物は、水洗によって確実
に除去できるからである。This is because B203 or these compounds can be reliably removed by washing with water.
８Ｎ粉末中の好しい酸素量は １％〜１５％。The preferred amount of oxygen in the 8N powder is 1% to 15%.
下限未満では、十分な耐溶損性が得られず、また上限を
越えると８２０３還元効率が低くなるので好しくない。If it is less than the lower limit, sufficient erosion resistance cannot be obtained, and if it exceeds the upper limit, the 8203 reduction efficiency will be lowered, which is not preferable.
また、酸素は還元成分と共存すると、ＢＮの焼結性が著
しく促進されるが、下限値未満では、十分な焼結強度が
ｊｑら礼ない。Further, when oxygen coexists with a reducing component, the sinterability of BN is significantly promoted, but if it is less than the lower limit, sufficient sintering strength is not achieved.
還元成分としては、金属としては、ＡＱ、Ｃａ、Ｍｇ、
Ｔｉ、Ｚｒ、Ｃｒ、Ｗ、Ｍｏ等、セラミックとシテハ、
ＡＲＮ、Ｓｉ３ Ｎ４ 、ＴｉＮ、ＺｒＮ等の窒化物、
Ｂ４ Ｃ１ＳｉＣ，ＴｉＣ，ｚｒｃ等の炭化物、ＺｒＢ
２ 、Ｔ＋ Ｂ２、ＡｌＢ２ 、ＣａＢ６等の硼化物、
ＭｏＳｉ、ＷＳｉ２、ＣｒＳｉ２、［３４３ｉ等の硅化
物が使用できる。As reducing components, metals include AQ, Ca, Mg,
Ti, Zr, Cr, W, Mo, etc., ceramic and shiteha,
Nitride such as ARN, Si3 N4, TiN, ZrN,
B4 C1SiC, TiC, carbide such as zrc, ZrB
2, T+ B2, AlB2, CaB6 and other borides,
Silicides such as MoSi, WSi2, CrSi2, [343i, etc. can be used.
これらの成分は、対象となる溶融体の種類とＢＮ系セラ
ミック焼結体の適応箇所に応じて適宜変えられる。These components can be changed as appropriate depending on the type of molten body and the location to which the BN ceramic sintered body is applied.
溶融体が溶鋼の場合、ＢＮｒＡ末の量１０〜９５％、Ｂ
Ｎ扮末中の水不溶性酸素量１〜１５％、還元成分５〜９
０％、その他の成分Ｏ〜８５％、適応箇所がＴ、Ｄ、
、１〜リベ等の溶鋼ナベ壁を通しての横からの連続測温
用保護管（厚み７ｍｍ）として用いる場合、測温時間が
〜１２ｈｒ未満では、ＢＮ粉末の量５０〜９５％、水不
溶性ｒ！ｉ素吊１〜１０％、還元成分５〜５０％、その
他の成分Ｏ〜４５％で十分てあり、３６ｈｒ未満ては、
ＢＮ粉末の呈１０〜９５％、水不溶性酸素量１〜１５％
、還元成分５〜９０％、その他の成分Ｏ〜８５％が好し
い。When the melt is molten steel, the amount of BNrA powder is 10 to 95%, B
Amount of water-insoluble oxygen in N dressing powder 1-15%, reducing component 5-9
0%, other components O to 85%, applicable locations are T, D,
When used as a protection tube (thickness 7 mm) for continuous temperature measurement from the side through the wall of a molten steel pan such as 1~Ribe, if the temperature measurement time is less than ~12 hr, the amount of BN powder is 50~95%, water-insoluble r! It is sufficient to use 1 to 10% of the basic component, 5 to 50% of the reducing component, and 0 to 45% of the other components, and for less than 36 hours,
BN powder appearance: 10-95%, water-insoluble oxygen content: 1-15%
, the reducing component is preferably 5 to 90%, and the other components are preferably 0 to 85%.
溶鋼種がリムド鋼の場合、還元成分としては、Ａ１、Ａ
ｆＬＮ、Ａｊ！８２ 、Ｓｉ、Ｓｉ３ Ｎ４ 、Ｂ４
Ｃ，５ｉＣ１ＺｒＢ２ 、Ｔｉ８２ 、ＣａＢ６が好し
く、その他の成分として、Ｙ２０３ 、Ｍｇ０ＸＣａｂ
、５ｉ０２ 、Ａｅ２０３、ＴｉＯ２か好しい。When the molten steel type is rimmed steel, the reducing components are A1, A
fLN,Aj! 82, Si, Si3 N4, B4
C,5iC1ZrB2, Ti82, CaB6 are preferred, and other components include Y203, Mg0XCab
, 5i02, Ae203, and TiO2 are preferred.
溶鋼種がキルト鋼、特にＡｆ−Ｋｉｌｌ！＝ｅｄ！ｆｌ
ｌｉの場合、還元成分としてＡｆＬＮ、Ｂ４ Ｃ，Ｓｉ
３ Ｎ４ 、ＺｒＮ、その他の成分として５ｉ０２ 、
Ａｆ２０３ 、Ｙ２０３ 、ｆＶＩＱｏ、ＴｉＯ２、Ｚ
ｒＯ２−８ｉ０２が好り、イ。The type of molten steel is quilt steel, especially Af-Kill! =ed! fl
In the case of li, AfLN, B4 C, Si as reducing components
3N4, ZrN, 5i02 as other components,
Af203, Y203, fVIQo, TiO2, Z
I like rO2-8i02.
溶融体が凝固を開始し、少くとも凝固部を有する箇所、
例えば横連続用のブレークリングやセラミックモールド
、ガラス溶融体用ノズルの様に、耐溶損性と共に耐熱衝
撃性が要求されるものには、ＢＮの粉末のｆｆ１７０〜
９７％、ＢＮ粉末中の水不溶性酸素の♀１〜１０％、還
元成分３〜３０％、その他の成分Ｏ〜２７％、還元成分
としては、ＡｕＮ、Ｓｉ３ Ｎ４ 、Ｂ４ Ｃ５ＺｒＢ
２ 、ＴｉＢ２が好しく、その他の成分としては、Ｙ２
０３．５ｉ０２、八ρ２０３が好しい。a point where the molten body starts to solidify and has at least a solidified part;
For example, for items that require not only melting damage resistance but also thermal shock resistance, such as break rings for horizontal continuity, ceramic molds, and nozzles for glass melt, BN powder with f170~
97%, ♀1-10% of water-insoluble oxygen in BN powder, reducing component 3-30%, other components O-27%, reducing components include AuN, Si3 N4, B4 C5ZrB
2, TiB2 is preferable, and other components include Y2
03.5i02, 8ρ203 are preferred.
還元成分のωは、少くとちＢＮ粉末中の酸素を化合物と
して固定する口は必要であり、反応に関与した量の残り
は、ＢＮと複合セラミックを形成することになる。The reducing component ω is necessary to fix the oxygen in the BN powder as a compound, and the remaining amount involved in the reaction forms a composite ceramic with BN.
例えば、還元成分としてＡｆｆｉＮを加えた場合、ＡＩ
Ｎが過剰な場合、焼成組織中には、ＢＮとＡＱ２０３、
又は、Ａｊ２ｏ３とＡｉ＞Ｎの複合酸化物、ＡＪ２Ｎの
複合セラミック相が形成されることになる。For example, when AffiN is added as a reducing component, AI
When N is excessive, BN and AQ203,
Alternatively, a composite oxide of Aj2o3 and Ai>N, or a composite ceramic phase of AJ2N is formed.
〈実施例〉
実施例１（還元成分として窒化アルミを用いた場合）酸
素含有量６．５％のＢＮ （ｈ−ＢＮ）粉末に窒化アル
ミニウムを４．９ｗｔ％、８．２ｗｔ％、１６．４ｗｔ
％を添加し、プレス成形によって、３０ｍＸ３０ｍＸ５
ｍの試片を得た。<Example> Example 1 (when aluminum nitride is used as the reducing component) Aluminum nitride was added to BN (h-BN) powder with an oxygen content of 6.5% at 4.9 wt%, 8.2 wt%, and 16.4 wt%.
% and press molding to make 30mX30mX5
A sample of m was obtained.
これをＮ２雰囲気で１８００℃で焼結した。This was sintered at 1800°C in a N2 atmosphere.
それぞれの焼結体のＸ線回折パターンを第１図、第２図
、第３図に示す。The X-ray diffraction patterns of each sintered body are shown in FIGS. 1, 2, and 3.
第１図はＡＩＮ４．９％、第２図はＡＩＮ８．２％、第
３図はＡｆｉＮ１６．４％のものである。Figure 1 is for AIN of 4.9%, Figure 2 for AIN of 8.2%, and Figure 3 for AfiN of 16.4%.
第１〜３図のＸ線回折結果より４．９％、８．２％／Ｖ
Ｎでは、共にＡＦ２０３の存在が認められ、ＡβＮ存在
しなかった。4.9%, 8.2%/V from the X-ray diffraction results in Figures 1 to 3
In both cases, the presence of AF203 was observed, but no AβN was present.
一方、ＡＩＮが過剰な１６．４％では、ＡＩＮ、Ａ１７
ＯＮの存在が認められ、これにはＡｌ２０３は認められ
なかった。On the other hand, at 16.4% where AIN is excessive, AIN, A17
The presence of ON was observed, and no Al203 was observed in this.
４．９％、８．２％ＡβＮでは、ＡＩＮはＢＮ中の酸素
との反応に消費され、次の反応が起ったものと推測され
る。At 4.9% and 8.2% AβN, it is presumed that AIN was consumed in the reaction with oxygen in BN, and the next reaction occurred.
Ａ１７Ｎ＋［０］→Ａ１２０３
一方Ａ１７Ｎが過剰な１６．４％のものでは、ＡｆＮ＋
Ｏ→ＡＮ２０３、Ａｌ２０３ ＋ＡｆＮ→ＡゑＯＮの反
応でＡＦＯＮが生成したものと思われる。A17N+[0]→A1203 On the other hand, in the case where A17N is excessive at 16.4%, AfN+
It is thought that AFON was generated by the reaction of O→AN203, Al203 +AfN→AeON.
上表から明らかな様に、ＡＩＮが増加すると強度、密度
共に高くなっている。As is clear from the above table, as AIN increases, both strength and density increase.
これは、酸素と還元成分の共存下では、ＢＮの焼結性が
促進されることを示している。This indicates that the sinterability of BN is promoted in the coexistence of oxygen and reducing components.
因みに、ＢＮ粉末中に酸素（水不溶性）がほとんど存在
しない０．０３％［０１のＢＮ粉末について同じテスト
を行った所、４．９％、８．２％、１６．４％ＡβＮの
いずれにもＡｌ２０３ 、Ａｌ０Ｎの存在は確認されな
かった。By the way, when we conducted the same test on BN powder of 0.03% [01], which has almost no oxygen (water-insoluble) in BN powder, it was found that 4.9%, 8.2%, and 16.4% AβN However, the presence of Al203 and Al0N was not confirmed.
１５５０’Ｃの溶１ｌｌ（０，２％のキルト鋼）への浸
漬テストでは、第４図の様な結果になった。In the immersion test in 1 liter of 1550'C melt (0.2% quilt steel), the results were as shown in Figure 4.
耐溶損性については、［０］とＡｊ２Ｎが共存すると顕
箸に効果があることが認められた。Regarding the erosion resistance, it was found that the coexistence of [0] and Aj2N is effective for making chopsticks.
実施例２
ＭｆＳ含有ｆｆ１６．２％のＢＮＩ末を用い、ＢＮ−Ａ
ｆＮ−３ｉ０２系複合セラミックスを実施例１と同様に
作製した。Example 2 Using BNI powder containing MfS and ff16.2%, BN-A
An fN-3i02-based composite ceramic was produced in the same manner as in Example 1.
Ｘ線回折の結果Ａｆ２０３−８ｉ０２又は、３ｉＱ２−
ＡｆｆＮ−Ａ９．２０３その他の同定不明相が出現した
。X-ray diffraction results Af203-8i02 or 3iQ2-
AffN-A9.203 Other unidentified phases appeared.
上記サンプルと同様な組成にて、１０φＸ１００ｊ！の
棒を作製し、５ｕＳ−３０４約１５００’Ｃｘ０．５ｈ
ｒ十０．０２％ＡＪを浸漬した結果、溶損は全くなかっ
た。With the same composition as the above sample, 10φX100j! Make a rod of 5uS-304 about 1500'C x 0.5h
As a result of immersing r10.02% AJ, there was no melting loss at all.
因みに、Ｎｏ、３のサンプル【ごてＢＮ粉末中に酸素（
水不溶性）が、はとんど存在しない０．０３％［０］の
ＢＮ粉末について同じテストを行った所、激しく溶損さ
れた。By the way, sample No. 3 [oxygen (
When the same test was performed on 0.03% [0] BN powder, which has almost no water insolubility, it was severely eroded away.
８．２％Ａ（Ｎ、第３図は、１６．４％ＡＩＮのＸ線回
折パターンである。8.2% A(N, Figure 3 is the X-ray diffraction pattern of 16.4% AIN.
第４図は、４．９％、８．２％、１６．４％Ａ［Ｎの溶
鋼浸漬テスｊ・結果を示したものである。FIG. 4 shows the results of a molten steel immersion test of 4.9%, 8.2%, and 16.4% A[N.
特許出願人 株式会社 香 蘭 社
又、Ｎｏ、２、Ｎｏ、３は、上記鋼種について全く濡れ
ずブレークリング、モールドに適応したところ、全く問
題なく使用できた。Patent applicant Koran Co., Ltd. Shamata No. 2, No. 3 did not get wet at all when applied to break rings and molds for the above-mentioned steel types, and could be used without any problems.
〈発明の効果〉
（１）本来、悪影響をもたらす［０］の存在が、還元成
分との共存下で、機械的性質、耐溶損性か共に向上する
。<Effects of the Invention> (1) The presence of [0], which originally has an adverse effect, improves both mechanical properties and erosion resistance in the coexistence with a reducing component.
（２）低ＩＴ！度粉末によりＢＮ焼結体のコストダウン
がはかれ工業的価値が大きい。(2) Low IT! The use of hard powder reduces the cost of BN sintered bodies and has great industrial value.
第１図は、４．９％ＡＩＮのＸ線回折パターン、第２図
はも
？４場１Ｃも−）
＼ 〜 （
☆
ら
？ζ
ｌ
丁続ン市正出
（自発）
昭和６３年１１月１７日
１ｊ１八′［ＦＴ艮官
殿
１、ｉ用′１の表示
昭和６３年１？ｉ許願第２６４９６７弓２、発明の名称
耐ニアｆＪＱ１（Ｌ Ｂ Ｎ系ヒラミックの製造方法３
、ン市ｊ［を刀る者
事１′１との関係
持直出願人
６、補正の内容
明細書箱９頁７行目から１４行目
とあるを
と訂正する。Figure 1 shows the X-ray diffraction pattern of 4.9% AIN, and Figure 2 shows the X-ray diffraction pattern of 4.9%AIN. 4 place 1C also -) \ ~ (☆ Ra? ζ l Dingzokuinichi Masade (self-motivated) November 17, 1985 1j18' [FT station official 1, display of '1 for i'1 1988 ?i Patent Application No. 264967 Bow 2, Name of Invention Durable Near fJQ1 (L B N Series Hiramic Manufacturing Method 3
, Nichij [Relationship with person 1'1] Applicant 6 corrects the statement in lines 7 to 14 on page 9 of the amended statement of contents.
Claims (3)
成分の原料粉末として水不溶性の酸素を含むＢＮ粉末を
使用すると共に、金属あるいはセラミックから成る該酸
素の還元成分を混合して焼成することを特徴とする耐溶
損性ＢＮ系セラミックの製造方法。(1) When producing melt-resistant BN ceramic, the BN
A method for producing a melt-resistant BN-based ceramic, characterized in that a water-insoluble BN powder containing oxygen is used as a raw material powder, and a metal or ceramic reducing component for the oxygen is mixed and fired.
％である請求項（１）に記載の製造方法。(2) The amount of water-insoluble oxygen in the BN powder is 1 to 15
%. The manufacturing method according to claim (1).
Ｚｒ、Ｃｒ、Ｗ、Ｍｏ等の金属あるいは、これらの化合
物である請求項（１）に記載の製造方法。(3) The above reducing component is Al, Si, Ca, Mg, Ti,
The manufacturing method according to claim 1, wherein the material is a metal such as Zr, Cr, W, or Mo, or a compound thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63264967A JP2742801B2 (en) | 1988-10-19 | 1988-10-19 | Method for producing erosion resistant BN ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63264967A JP2742801B2 (en) | 1988-10-19 | 1988-10-19 | Method for producing erosion resistant BN ceramics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02111665A true JPH02111665A (en) | 1990-04-24 |
| JP2742801B2 JP2742801B2 (en) | 1998-04-22 |
Family
ID=17410695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63264967A Expired - Lifetime JP2742801B2 (en) | 1988-10-19 | 1988-10-19 | Method for producing erosion resistant BN ceramics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2742801B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56139260A (en) * | 1980-03-31 | 1981-10-30 | Shinagawa Refract Co Ltd | Nozzle for casting |
| JPS59169982A (en) * | 1983-03-17 | 1984-09-26 | 黒崎窒業株式会社 | Boron nitride containing refractories |
| JPS632858A (en) * | 1986-06-21 | 1988-01-07 | 黒崎窯業株式会社 | Manufacture of boron nitride-containing refractories |
| JPS6374965A (en) * | 1986-09-18 | 1988-04-05 | 黒崎窯業株式会社 | Manufacture of boron nitrid-containing highly resistant refractories |
-
1988
- 1988-10-19 JP JP63264967A patent/JP2742801B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56139260A (en) * | 1980-03-31 | 1981-10-30 | Shinagawa Refract Co Ltd | Nozzle for casting |
| JPS59169982A (en) * | 1983-03-17 | 1984-09-26 | 黒崎窒業株式会社 | Boron nitride containing refractories |
| JPS632858A (en) * | 1986-06-21 | 1988-01-07 | 黒崎窯業株式会社 | Manufacture of boron nitride-containing refractories |
| JPS6374965A (en) * | 1986-09-18 | 1988-04-05 | 黒崎窯業株式会社 | Manufacture of boron nitrid-containing highly resistant refractories |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2742801B2 (en) | 1998-04-22 |
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