JP3415705B2 - Sialon-BN composite sintered body and method of manufacturing the same - Google Patents
Sialon-BN composite sintered body and method of manufacturing the sameInfo
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- JP3415705B2 JP3415705B2 JP19014695A JP19014695A JP3415705B2 JP 3415705 B2 JP3415705 B2 JP 3415705B2 JP 19014695 A JP19014695 A JP 19014695A JP 19014695 A JP19014695 A JP 19014695A JP 3415705 B2 JP3415705 B2 JP 3415705B2
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- sialon
- sintered body
- composite sintered
- heat treatment
- temperature
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、耐酸化性に優れた
Ｓｉ−Ａｌ−Ｂ−Ｏ系ガラス質被膜を有してなるサイア
ロン−ＢＮ複合焼結体及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sialon-BN composite sintered body having a Si-Al-B-O glassy coating excellent in oxidation resistance and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、溶融金属を取り扱う分野で使用さ
れる耐蝕性部材には、（１）耐熱衝撃性に優れているこ
と、（２）溶融金属に対する耐蝕性に優れていること、
（３）耐酸化性に優れていることの特性が要求されてい
る。サイアロン−ＢＮ複合焼結体は上記（１）、（２）
の特性が良好であるため、鋳造用ブレークリング、ノズ
ル、保護管等への適用が試みられている。2. Description of the Related Art Conventionally, corrosion resistant members used in the field of handling molten metal have (1) excellent thermal shock resistance, (2) excellent corrosion resistance to molten metal,
(3) The property of being excellent in oxidation resistance is required. The sialon-BN composite sintered body has the above (1) and (2).
Since it has good properties, it has been attempted to be applied to a break ring for casting, a nozzle, a protective tube and the like.
【０００３】例えば、（ａ）Ｓｉ3 Ｎ4 又はサイアロン
からなる内層とＢＮ、ＳｉＯ2 及びＡｌＮを主成分とす
る外層とを一体的に焼結されてなる溶湯浸漬用部材（特
開平２−３８３９１号公報）、（ｂ）Ｓｉ3 Ｎ4 、Ａｌ
Ｎ、Ａｌ2 Ｏ3 の混合粉末又はＳｉ3 Ｎ4 、ＡｌＮ、Ａ
ｌ2 Ｏ3 、ＳｉＯ2 の混合粉末を焼結して得られた一般
式Ｓｉ6-Z Ａｌz Ｏz Ｎ8-z （但し１≦Ｚ≦３）で表さ
れるサイアロン組成物３０〜７０重量％、結晶子径５０
〜１５０ＡのＢＮ２０〜７０重量％、ＣａＯ又はＳｒＯ
０. １〜１０重量％、Ｙ及びランタニド系金属元素から
選ばれた少なくとも１種の金属の酸化物０. １〜５重量
％からなるサイアロン質複合焼結体（特開平５−７７７
５８号公報）等である。For example, (a) a member for dipping molten metal, which is obtained by integrally sintering an inner layer made of Si 3 N 4 or sialon and an outer layer containing BN, SiO 2 and AlN as main components (JP-A-2-38391). Gazette), (b) Si 3 N 4 , Al
N, Al 2 O 3 mixed powder or Si 3 N 4 , AlN, A
Sialon compositions 30 to 70 represented by the general formula Si 6-Z Al z O z N 8-z (where 1 ≦ Z ≦ 3) obtained by sintering a mixed powder of l 2 O 3 and SiO 2 % By weight, crystallite size 50
~ 150A BN 20-70wt%, CaO or SrO
A sialon-based composite sintered body comprising 0.1 to 10% by weight and 0.1 to 5% by weight of an oxide of at least one metal selected from Y and lanthanide-based metal elements (JP-A-5-777).
58).
【０００４】しかしながら、（ａ）では高密度（相対密
度９９％）、高強度（曲げ強度８０ｋｇ／ｍｍ2 ：常温
及び１０００℃）の焼結体が得られる反面、耐熱衝撃性
ΔＴが６００℃と低く、また（ｂ）でも複合焼結体の相
対密度は８８〜９８％と高いが、耐熱衝撃性ΔＴが８０
０〜１２００℃と不十分であり、上記（３）の特性を満
たしたものではなかった。そのため、例えば鋳鉄、合金
等の溶融金属に浸漬した際に表面からガスが発生するの
で測温用保護管等の用途には適さなかった。However, in (a), a high density (relative density 99%) and high strength (flexural strength 80 kg / mm 2 : normal temperature and 1000 ° C.) sintered body can be obtained, but the thermal shock resistance ΔT is 600 ° C. Although the composite sintered body has a low relative density of 88 to 98% even in (b), the thermal shock resistance ΔT is 80.
It was inadequate at 0 to 1200 ° C. and did not satisfy the characteristic of (3) above. Therefore, for example, when immersed in a molten metal such as cast iron or an alloy, gas is generated from the surface, which is not suitable for use as a protective tube for temperature measurement.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は上記問
題を解決し、耐蝕性、耐熱衝撃性、耐酸化性に優れたサ
イアロン−ＢＮ複合焼結体及びその製造方法を提供する
ことである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a sialon-BN composite sintered body excellent in corrosion resistance, thermal shock resistance and oxidation resistance, and a method for producing the same. .
【０００６】[0006]
【課題を解決するための手段】すなわち、本発明は、表
面に厚さ２〜２００μｍのＳｉ−Ａｌ−Ｂ−Ｏ系ガラス
質被膜を有してなることを特徴とするサイアロン−ＢＮ
複合焼結体、及びサイアロン−ＢＮ複合焼結体を酸素を
含む雰囲気下、温度８００〜１６００℃で第一段加熱処
理し、次いで非酸化性雰囲気又は真空雰囲気下で第一段
加熱処理温度よりも高温で第二段加熱処理することを特
徴とする表面にＳｉ−Ａｌ−Ｂ−Ｏ系ガラス質被膜の施
されてなるサイアロン−ＢＮ複合焼結体の製造方法であ
る。That is, the present invention is characterized by comprising a Si-Al-B-O type vitreous coating having a thickness of 2 to 200 .mu.m on the surface thereof.
The composite sintered body and the sialon-BN composite sintered body are subjected to a first stage heat treatment at a temperature of 800 to 1600 ° C. in an atmosphere containing oxygen, and then a first stage heat treatment temperature in a non-oxidizing atmosphere or a vacuum atmosphere. Is a second stage heat treatment at a high temperature, which is a method for producing a sialon-BN composite sintered body having a surface coated with a Si—Al—B—O glassy coating.
【０００７】[0007]
【発明の実施の形態】以下、更に詳しく本発明を説明す
る。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail below.
【０００８】本発明の母材となるサイアロン−ＢＮ複合
焼結体については特に限定がないが、溶融金属に対する
耐蝕性と耐熱衝撃性の点から、サイアロン粉末又はその
前駆体粉末４０〜７０重量％及びＢＮ粉末６０〜３０重
量％からなる混合粉末を焼結して得られたものであるこ
とが好ましい。サイアロンの種類としては、β’、Ｘ、
１５Ｒ等があげられるが、温度１５００℃程度の溶銑に
使用する場合には耐熱性の点からβ’サイアロンが好適
である。The Sialon-BN composite sintered body as the base material of the present invention is not particularly limited, but from the viewpoint of corrosion resistance to molten metal and thermal shock resistance, 40 to 70% by weight of Sialon powder or its precursor powder is used. And a powder obtained by sintering a mixed powder of 60 to 30% by weight of BN powder. The types of sialon are β ', X,
For example, βR sialon is preferable from the viewpoint of heat resistance when used in hot metal having a temperature of about 1500 ° C.
【０００９】母材サイアロン−ＢＮ複合焼結体の表面に
施されるＳｉ−Ａｌ−Ｂ−Ｏ系ガラス質被膜の厚さは２
〜２００μｍであり、２μｍ未満では耐酸化性の向上効
果が十分でなく、また２００μｍを超えると熱伝導率が
低下したり熱衝撃により被膜にクラックが発生したりす
る。The thickness of the Si—Al—B—O type vitreous coating applied to the surface of the base material Sialon-BN composite sintered body is 2
If it is less than 2 μm, the effect of improving the oxidation resistance is not sufficient, and if it exceeds 200 μm, the thermal conductivity is lowered and cracks are generated in the coating film due to thermal shock.
【００１０】被膜はＳｉ−Ａｌ−Ｂ−Ｏ系ガラス質であ
り、その成分はＳＥＭ／ＥＤＡＸによって、また厚さは
ＳＥＭによって測定することができる。更に、結晶性は
被膜のある状態とそれを除去した状態でＸ線回折を行い
両回折パターンの差によって測定することができる。The coating is a Si--Al--B--O glassy material, the components of which can be measured by SEM / EDAX and the thickness of which can be measured by SEM. Furthermore, the crystallinity can be measured by performing X-ray diffraction in the state with the coating film and the state with the coating film removed, and by measuring the difference between the two diffraction patterns.
【００１１】次に、本発明のサイアロン−ＢＮ複合焼結
体の製造方法について説明すると、本発明の製造方法の
大きな特徴は、母材となるサイアロン−ＢＮ複合焼結体
を特定条件で二段加熱処理してその表面にＳｉ−Ａｌ−
Ｂ−Ｏ系ガラス質被膜を形成させることである。Next, the method for producing the sialon-BN composite sintered body of the present invention will be described. The major feature of the production method of the present invention is that the sialon-BN composite sintered body as a base material is provided in two stages under specific conditions. After heat treatment, Si-Al-
The purpose is to form a B—O glassy coating.
【００１２】母材となるサイアロン−ＢＮ複合焼結体
は、上記のように溶融金属に対する耐蝕性と耐熱衝撃性
の点から、サイアロン粉末又はその前駆体粉末４０〜７
０重量％及びＢＮ粉末６０〜３０重量％からなる混合粉
末を焼結して得られたものであることが好ましい。ここ
で、サイアロンの前駆体粉末としてはＳｉ3 Ｎ4 、Ａｌ
Ｎ、Ａｌ2 Ｏ3 の混合粉末が好適である。The Sialon-BN composite sintered body as the base material is made of Sialon powder or its precursor powders 40 to 7 in view of the corrosion resistance and the thermal shock resistance against the molten metal as described above.
It is preferably obtained by sintering a mixed powder composed of 0% by weight and 60 to 30% by weight of BN powder. Here, as the precursor powder of sialon, Si 3 N 4 , Al
A mixed powder of N and Al 2 O 3 is suitable.
【００１３】本発明においては、サイアロンの種類には
何ら制約はなく、使用温度やその種類に対して適切な耐
蝕性と耐熱衝撃性を有するものが選択される。例えば、
温度１５００℃程度の溶銑に使用する場合にはβ’サイ
アロンが好ましいので、その前駆体粉末としてはＳｉ3
Ｎ4 ４〜９０重量％、残部がＡｌＮ及びＡｌ2 Ｏ3 から
なり、その重量比がＡｌＮ／Ａｌ2 Ｏ3 ＝０．４０〜
０．６５程度のものが使用される。In the present invention, there is no restriction on the type of sialon, and a sialon having suitable corrosion resistance and thermal shock resistance for the operating temperature and its type is selected. For example,
When used for hot metal at a temperature of about 1500 ° C., β ′ sialon is preferable, so that the precursor powder thereof is Si 3
N 4 4 to 90% by weight, the balance consisting of AlN and Al 2 O 3 , the weight ratio of which is AlN / Al 2 O 3 = 0.40
The thing of about 0.65 is used.
【００１４】母材となるサイアロン−ＢＮ複合焼結体
は、粒度１０μｍ以下好ましくは５μｍ以下に調整され
た上記混合粉末を窒素、アルゴン等の非酸化性雰囲気
下、温度１６００〜１９００℃程度でホットプレス焼結
するか、又は常圧焼結法によって製造することができ
る。ホットプレス焼結において、圧力と焼結時間を変化
させることによって相対密度を調節することができる。
このようなサイアロン−ＢＮ複合焼結体には市販品があ
るのでそれを使用することもできる。A sialon-BN composite sintered body as a base material is prepared by hot-mixing the above-mentioned mixed powder having a grain size of 10 μm or less, preferably 5 μm or less in a non-oxidizing atmosphere such as nitrogen or argon at a temperature of about 1600 to 1900 ° C. It can be press-sintered or manufactured by an atmospheric pressure sintering method. In hot press sintering, the relative density can be adjusted by changing the pressure and the sintering time.
Since such a sialon-BN composite sintered body is commercially available, it can be used.
【００１５】本発明は、以上のようなサイアロン−ＢＮ
複合焼結体を、先ず酸素を含む雰囲気下、温度８００〜
１６００℃で第一段加熱処理を行ってＳｉＯ2 、Ａｌ2
Ｏ3、Ｂ2 Ｏ3 からなる低融点ガラス質酸化物を生成さ
せる。しかし、このような酸化物では均一な被膜を形成
しないので、本発明では次いでこれを非酸化性雰囲気下
又は真空中で第一段加熱処理温度よりも高温で第二段加
熱処理を行う。この第二段加熱処理によって、上記酸化
物がＳｉ−Ａｌ−Ｂ−Ｏガラス質の均一な被膜に変化す
るとともに低融点成分が揮発するのでＳｉ−Ａｌ−Ｂ−
Ｏ組成が高温で安定な領域にシフトし安定なガラス質被
膜が形成される。The present invention is based on the above-mentioned Sialon-BN.
First, the composite sintered body is first heated in an atmosphere containing oxygen at a temperature of 800 to
First stage heat treatment at 1600 ° C for SiO 2 , Al 2
A low-melting glassy oxide composed of O 3 and B 2 O 3 is produced. However, since such an oxide does not form a uniform film, in the present invention, this is then subjected to a second stage heat treatment at a temperature higher than the first stage heat treatment temperature in a non-oxidizing atmosphere or in a vacuum. By this second-stage heat treatment, the above oxide is changed into a uniform film of Si—Al—B—O glassy material and the low melting point component is volatilized.
The O composition shifts to a stable region at high temperature, and a stable vitreous coating is formed.
【００１６】本発明において、第一段加熱処理温度が８
００℃未満ではＳｉＯ2 、Ａｌ2 Ｏ 3 、Ｂ2 Ｏ3 からな
る低融点ガラス質酸化物が十分に生成せず、また１６０
０℃を超えると低融点ガラス質酸化物の生成量が多くな
り、形成されるＳｉ−Ａｌ−Ｂ−Ｏガラス質の膜厚が厚
くなりすぎる。一方、第二段加熱処理温度が第一段加熱
温度よりも低温では、第一段加熱処理によって生成した
低融点ガラス質酸化物から均一被膜が形成せず、また低
融点成分の揮発なども十分に行われなくなるため、安定
なＳｉ−Ａｌ−Ｂ−Ｏ系ガラス被膜が形成されない。第
二段加熱処理温度の好ましい温度は、本発明のサイアロ
ン−ＢＮ複合焼結体が使用される温度よりも高い温度で
あり、これによって使用時のガラス質被膜の安定性を高
めることができる。In the present invention, the first stage heat treatment temperature is 8
Below 00 ° C SiO2, Al2O 3, B2O3Empty
The low-melting-point vitreous oxide,
If the temperature exceeds 0 ° C, the amount of low-melting glassy oxide is increased.
The thickness of the formed Si-Al-B-O glassy film is large.
It gets too bad. On the other hand, the second stage heat treatment temperature is the first stage heating
At temperatures lower than the temperature, generated by the first-stage heat treatment
A low melting point glassy oxide does not form a uniform film
Stable because the melting point component does not volatilize sufficiently
No Si-Al-B-O glass coating is formed. First
The preferable temperature of the two-stage heat treatment is the sialog of the present invention.
At a temperature higher than the temperature at which the BN-BN composite sintered body is used.
Yes, this increases the stability of the vitreous coating during use.
Can be turned on.
【００１７】加熱処理の雰囲気については、第一段加熱
処理の雰囲気は酸素を含む雰囲気下であり、酸素を含ま
ない窒素、アルゴン等の不活性雰囲気中であっては十分
な耐酸化性を有するＳｉＯ2 、Ａｌ2 Ｏ3 、Ｂ2 Ｏ3 か
らなる低融点ガラス質酸化物が母材のサイアロン−ＢＮ
複合焼結体表面に生成しない。酸素を含む雰囲気とは、
酸素分圧０．０１〜１ａｔｍ好ましくは０．０５〜０．
３ａｔｍである。一方、第二段加熱処理の雰囲気は窒
素、アルゴン等の非酸化性雰囲気又は真空雰囲気であ
る。第二段加熱処理を酸素を含む雰囲気で行うとこの段
階においてもＳｉＯ 2 、Ａｌ2 Ｏ3 、Ｂ2 Ｏ3 からなる
低融点ガラス質酸化物が生成し、しかも低融点成分の揮
発も十分でなくなるので高温で安定なＳｉ−Ａｌ−Ｂ−
Ｏ系ガラス質被膜が形成しなくなる。Regarding the atmosphere of the heat treatment, the first stage heating
The processing atmosphere is an oxygen-containing atmosphere and does not contain oxygen.
Not enough in an inert atmosphere such as nitrogen or argon
With excellent oxidation resistance2, Al2O3, B2O3Or
Low melting glass oxide made of Sialon-BN as the base material
Does not form on the surface of the composite sintered body. What is an atmosphere containing oxygen?
Oxygen partial pressure 0.01 to 1 atm, preferably 0.05 to 0.
It is 3 atm. On the other hand, the atmosphere of the second stage heat treatment is
In a non-oxidizing atmosphere such as oxygen or argon, or in a vacuum atmosphere
It If the second stage heat treatment is performed in an atmosphere containing oxygen, this stage
SiO on the floor 2, Al2O3, B2O3Consists of
A low-melting glassy oxide is formed, and the low-melting component is vaporized.
Emission is not sufficient, so stable Si-Al-B- at high temperature
O-based vitreous coating is not formed.
【００１８】[0018]
【実施例】以下、実施例、比較例をあげて具体的に本発
明を説明する。EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples.
【００１９】実施例１〜７、比較例２〜６
サイアロン−ＢＮ複合焼結体（Ｘ線回折によればβ’サ
イアロン５５％、ＢＮ４５％）を保護管形状（外径１４
ｍｍ、内径６ｍｍ、長さ１８０ｍｍの円筒形状）に加工
し、表１に示した加熱処理条件で第一段加熱処理及び第
二段加熱処理を行った。Examples 1 to 7 and Comparative Examples 2 to 6 Sialon-BN composite sintered bodies (β'sialon 55% and BN 45% according to X-ray diffraction) were formed into a protective tube shape (outer diameter 14
mm, an inner diameter of 6 mm, and a length of 180 mm), and the first stage heat treatment and the second stage heat treatment were performed under the heat treatment conditions shown in Table 1.
【００２０】得られた被膜を有するサイアロン−ＢＮ複
合焼結体（保護管）について、被膜の厚さ及びその成分
の同定を以下のようにして行った。すなわち、実施例１
〜７については保護管を切断採取し、断面のＳＥＭ観察
により表面に形成された被膜の厚さを測定した。それら
の結果を表１に示す。With respect to the sialon-BN composite sintered body (protective tube) having the obtained coating, the thickness of the coating and its components were identified as follows. That is, Example 1
For Nos. 7 to 7, the protective tube was cut and sampled, and the thickness of the coating film formed on the surface was measured by SEM observation of the cross section. The results are shown in Table 1.
【００２１】更に、実施例１〜７の試料について表面に
形成された被膜を断面方向からＳＥＭ／ＥＤＡＸ分析を
したところ、いずれもＳｉ、Ａｌ、Ｂ、Ｏの成分で構成
されていることが確認された。また、保護管基材と同一
の基材で作製された角形状試験片（２０ｍｍ×２０ｍｍ
×５ｍｍ）を保護管と一緒に処理しておき、被膜を除去
する前後でＸ線回折分析を行い両者のパターンの差を測
定したところ、ガラス質を示すブロードな回折パターン
が得られ、被膜はＳｉ−Ａｌ−Ｂ−Ｏ系ガラスであるこ
とが確認された。Further, the coating films formed on the surfaces of the samples of Examples 1 to 7 were subjected to SEM / EDAX analysis from the cross-sectional direction, and it was confirmed that they were all composed of Si, Al, B and O components. Was done. In addition, a rectangular test piece (20 mm × 20 mm) made of the same base material as the protective tube base material
(× 5 mm) was treated together with a protective tube, and X-ray diffraction analysis was performed before and after removing the coating, and the difference between the patterns of the two was measured. It was confirmed to be Si-Al-B-O type glass.
【００２２】次いで、得られた被膜を有する保護管を１
６００℃の鋳鉄に浸漬（浸漬深さ８０ｍｍ）し、目視に
よるガス発生度合いを評価するとともに、発生したガス
をガスクロマトグラフィで分析し、１６００℃、１ａｔ
ｍ下における単位表面積当りのＢ2 Ｏ3 発生量を測定し
た。それらの結果を表１に示す。Then, the protective tube having the obtained coating was
Immersion in cast iron at 600 ° C (immersion depth 80 mm), visually evaluating the degree of gas generation, and analyzing the generated gas by gas chromatography, 1600 ° C, 1at
The amount of B 2 O 3 generated per unit surface area under m was measured. The results are shown in Table 1.
【００２３】比較例１
第一段及び第二段の加熱処理を実施しないで、母材サイ
アロン−ＢＮ複合焼結体自体の特性を実施例１と同様に
して評価した。Comparative Example 1 The characteristics of the base metal sialon-BN composite sintered body itself were evaluated in the same manner as in Example 1 without carrying out the heat treatment of the first and second steps.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【発明の効果】本発明によれば、耐蝕性、耐熱衝撃性、
耐酸化性に優れたサイアロン−ＢＮ複合焼結体が提供さ
れる。According to the present invention, corrosion resistance, thermal shock resistance,
A Sialon-BN composite sintered body having excellent oxidation resistance is provided.
【００２６】本発明のサイアロン−ＢＮ複合焼結体は、
溶湯浸漬使用時にガスが殆ど発生しないので、測温用保
護管等の溶融金属の耐蝕部材として好適である。The sialon-BN composite sintered body of the present invention is
Since almost no gas is generated when the molten metal is used for immersion, it is suitable as a corrosion resistant member for molten metal such as a protective tube for temperature measurement.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−156087（ＪＰ，Ａ) 特開 昭63−170270（ＪＰ，Ａ) 特開 平２−164773（ＪＰ，Ａ) 特開 昭59−88372（ＪＰ，Ａ) 特開 昭61−6191（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 41/87 C04B 41/80 C04B 35/599 C04B 35/583 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-63-156087 (JP, A) JP-A-63-170270 (JP, A) JP-A-2-164773 (JP, A) JP-A-59- 88372 (JP, A) JP 61-6191 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C04B 41/87 C04B 41/80 C04B 35/599 C04B 35/583
Claims (2)
−Ｂ−Ｏ系ガラス質被膜を有してなることを特徴とする
サイアロン−ＢＮ複合焼結体。1. Si-Al having a thickness of 2 to 200 μm on the surface
-A sialon-BN composite sintered body comprising a B-O glassy coating.
む雰囲気下、温度８００〜１６００℃で第一段加熱処理
し、次いで非酸化性雰囲気又は真空雰囲気下で第一段加
熱処理温度よりも高温で第二段加熱処理することを特徴
とする表面にＳｉ−Ａｌ−Ｂ−Ｏ系ガラス質被膜の施さ
れてなるサイアロン−ＢＮ複合焼結体の製造方法。2. A sialon-BN composite sintered body is subjected to a first stage heat treatment at a temperature of 800 to 1600 ° C. in an atmosphere containing oxygen, and then in a non-oxidizing atmosphere or a vacuum atmosphere at a temperature lower than the first stage heat treatment temperature. A method for producing a sialon-BN composite sintered body, comprising a Si-Al-B-O glassy coating on the surface, characterized by being subjected to a second stage heat treatment at a high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19014695A JP3415705B2 (en) | 1995-07-26 | 1995-07-26 | Sialon-BN composite sintered body and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19014695A JP3415705B2 (en) | 1995-07-26 | 1995-07-26 | Sialon-BN composite sintered body and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0940463A JPH0940463A (en) | 1997-02-10 |
| JP3415705B2 true JP3415705B2 (en) | 2003-06-09 |
Family
ID=16253181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19014695A Expired - Fee Related JP3415705B2 (en) | 1995-07-26 | 1995-07-26 | Sialon-BN composite sintered body and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3415705B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4667520B2 (en) * | 2009-03-31 | 2011-04-13 | 三井金属鉱業株式会社 | Silicon nitride based composite ceramics and method for producing the same |
-
1995
- 1995-07-26 JP JP19014695A patent/JP3415705B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0940463A (en) | 1997-02-10 |
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