JPH01148754A - Production of x phase sialon sintered body - Google Patents
Production of x phase sialon sintered bodyInfo
- Publication number
- JPH01148754A JPH01148754A JP62304608A JP30460887A JPH01148754A JP H01148754 A JPH01148754 A JP H01148754A JP 62304608 A JP62304608 A JP 62304608A JP 30460887 A JP30460887 A JP 30460887A JP H01148754 A JPH01148754 A JP H01148754A
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- compds
- phase sialon
- sialon sintered
- temperature
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 6
- 229910052581 Si3N4 Inorganic materials 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 229910017083 AlN Inorganic materials 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000004584 weight gain Effects 0.000 description 2
- 235000019786 weight gain Nutrition 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002904 solvent Substances 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
- C04B35/597—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 silicon oxynitride, e.g. SIALONS
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
本発明は、Ｘ相サイアロン焼結体の製造方法に関し、
緻密で、曲げ強さが大きく、かつ高温度においても劣化
しないＸ相サイアロン焼結体を提供することを目的とし
、
ＳｉＯ□、ＡＪｚＯ３，５ｉＪ４および八βＮのうち少
なくとも３種の化合物の粉末をＳｉ：Ａｌ：Ｏ：Ｎの原
子比が６±１ニア±１＝１８±１＝３±２となるように
混合して圧粉成形し、圧力１０〜２００気圧の窒素中で
温度１６４０〜１６８０℃に加熱して焼結するように構
成する。[Detailed Description of the Invention] [Summary] The present invention relates to a method for producing an X-phase sialon sintered body, and provides an X-phase sialon sintered body that is dense, has high bending strength, and does not deteriorate even at high temperatures. For the purpose of The mixture is mixed and compacted, and then heated to a temperature of 1,640 to 1,680° C. in nitrogen at a pressure of 10 to 200 atm to sinter.
本発明はＸ相サイアロン焼結体の製造方法に関する。 The present invention relates to a method for producing an X-phase sialon sintered body.
サイアロンは、高温度において劣化しない高強度の材料
として注目されており、ＳｉＡβＯＮの四元化合物であ
る。サイアロンの焼結体はα型、およびβ型が知られて
いるが、Ｘ相サイアロンの焼結体はまだ知られていない
。Sialon is attracting attention as a high-strength material that does not deteriorate at high temperatures, and is a quaternary compound of SiAβON. Although α-type and β-type sialon sintered bodies are known, X-phase sialon sintered bodies are not yet known.
本発明の目的は、緻密で、曲げ強さが太き（、かつ高温
度においても劣化しないＸ相サイアロン焼結体を提供す
ることである。An object of the present invention is to provide an X-phase sialon sintered body that is dense, has high bending strength (and does not deteriorate even at high temperatures).
上記問題点は、５ｉ０２ 、 Ａｌ２２０３ 、
Ｓｉ３Ｎ４およびＡＩＮのうち少なくとも３種の代合物
の粉末を、Ｓｉ ：ＡＡ ：Ｏ：Ｎの原子比が６±１
ニア±１：１８±１＝３±２となるように混合して、圧
粉成形し、圧力ｌＯ〜２００気圧の窒素中で温度１６４
０〜１６８０°Ｃに加熱して焼結することを特徴とする
。Ｘ相サイアロン焼結体の製造方法によって解決するこ
とができる。The above problem is caused by 5i02, Al2203,
Powders of at least three types of substitutes among Si3N4 and AIN have an atomic ratio of Si:AA:O:N of 6±1.
The mixture was mixed so that the ratio of near ± 1:18 ± 1 = 3 ± 2, compacted, and heated at a temperature of 164 in nitrogen at a pressure of 10 to 200 atm.
It is characterized by being sintered by heating to 0 to 1680°C. This problem can be solved by a method for manufacturing an X-phase sialon sintered body.
〔作 用］
５ｉ０２．ＡＡ２０３ 、５１３Ｎ４およびＡＪＮの
うち少なくとも３種の化合物を混合したときのＳｉ ：
Ａｌ２：Ｏ：Ｎの原子比が６±１ニア±：１８±１：３
±２を外れると、焼結体はＸ相サイアロンの組成が得ら
れない。焼成温度は、１６８０℃より高い温度では、被
焼結体中で部分的な発泡が起こり、焼結体の密度が低下
し１６４０°Ｃより低い温度では、焼結が不完全でやは
り密度が上昇しない。また窒素以外の雰囲気では、原料
である５ｉＪ４． Ａｊｌ！Ｎの酸化、あるいは分解
反応が起こり、目的とする組成の焼結体が得られない。[Effect] 5i02. Si when at least three compounds among AA203, 513N4 and AJN are mixed:
Al2:O:N atomic ratio is 6±1 near±:18±1:3
If it deviates from ±2, the sintered body will not have the composition of X-phase Sialon. When the firing temperature is higher than 1680°C, partial foaming occurs in the sintered body and the density of the sintered body decreases, and when the temperature is lower than 1640°C, sintering is incomplete and the density also increases. do not. In addition, in an atmosphere other than nitrogen, the raw material 5iJ4. Ajl! Oxidation or decomposition reactions of N occur, making it impossible to obtain a sintered body with the desired composition.
また窒素気圧が１０気圧より低いと、分解反応が起こり
、２００気圧より高い必要はない。Further, if the nitrogen pressure is lower than 10 atm, a decomposition reaction will occur, so it is not necessary to be higher than 200 atm.
１施■
純度がそれぞれ９９％以上であって、平均粒径２ｐｍの
５ｉ０２、平均粒径１．３μｍの八１２０３および平均
粒径１．８μｍのｉＮをモル比でＳｉＯ□：八ｊ！２Ｑ
３： 八１Ｎ＝６：２：３となるように？捏合した。1 test ■ 5i02 with an average particle size of 2 pm, 81203 with an average particle size of 1.3 μm, and iN with an average particle size of 1.8 μm, each with a purity of 99% or more, in a molar ratio of SiO□:8j! 2Q
3: So that 81N = 6:2:3? It was kneaded.
この混合粉末１００ｇに、バインダのポリビニルブチラ
ール８ｇおよび溶剤のエチルアルコール２５０ｃｃを加
えてボールミルで混練し、乾燥した後に圧力２ｔ／ｃＩ
１１で６Ｘ４Ｘ３０鰭の直方体に圧粉成形した。この成
形体を温度４００°Ｃ１，１時間加熱して脱バインダし
た後に、１５０気圧の加圧窒素中で、１６８０℃、５時
間焼結した。Ｘ相回折によればこの焼結体はＸ相サイア
ロンであり、密度２．７ｇ ／ ｃｏ？、気孔率１％で
あった。またＪＩＳ−Ｒ１６０１によって測定した曲げ
強さは４０ｋｇｆ／鰭２であった。また第１図に示すよ
うに、温度１２００℃までこの強度を維持した。また第
２図に示すように、大気中、温度１，０００℃、６０時
加熱後も酸化増量が、認められなかった。To 100 g of this mixed powder, 8 g of polyvinyl butyral as a binder and 250 cc of ethyl alcohol as a solvent were added and kneaded in a ball mill. After drying, the pressure was 2 t/cI.
11, it was compacted into a rectangular parallelepiped with 6×4×30 fins. This molded body was heated at 400° C. for 1 hour to remove the binder, and then sintered at 1680° C. for 5 hours in pressurized nitrogen at 150 atm. According to X-phase diffraction, this sintered body is X-phase Sialon, with a density of 2.7 g/co? , the porosity was 1%. The bending strength measured according to JIS-R1601 was 40 kgf/2 fins. Moreover, as shown in FIG. 1, this strength was maintained up to a temperature of 1200°C. Further, as shown in FIG. 2, no increase in oxidation weight was observed even after heating in the air at a temperature of 1,000° C. for 60 hours.
本発明によって従来得られていなかったＸ相サイアロン
焼結体を製造することができる。According to the present invention, it is possible to produce an X-phase sialon sintered body that has not been previously obtained.
第１図はＸ相サイアロンの曲げ強さと温度との関係を示
すグラフであり、
第２図はＸ相サイアロン焼結体の酸化増量と高温保持時
間との関係を示すグラフである。
（に９ｆΔ圃２）
温度
曲げ強さと温度との関係
第１図
酸化増量と高温保持時間との関係
第２図FIG. 1 is a graph showing the relationship between the bending strength of X-phase sialon and temperature, and FIG. 2 is a graph showing the relationship between oxidation weight gain and high-temperature holding time of the X-phase sialon sintered body. (9fΔ field 2) Relationship between temperature bending strength and temperature Figure 1 Relationship between oxidation weight gain and high temperature holding time Figure 2
Claims (1)
びＡｌＮのうち少なくとも３種の化合物の粉末を、Ｓｉ
：Ａｌ：Ｏ：Ｎの原子比が６±１：７±１：１８±１：
３±２となるように混合して、圧粉成形し、圧力１０〜
２００気圧の窒素中で温度１６４０〜１６８０℃に加熱
して焼結することを特徴とする、Ｘ相サイアロン焼結体
の製造方法。1. Powders of at least three compounds among SiO_2, Al_2O_3, Si_3N_4 and AlN are
:Al:O:N atomic ratio is 6±1:7±1:18±1:
Mix it so that it is 3±2, compact it, and press 10~
A method for producing an X-phase sialon sintered body, the method comprising heating and sintering at a temperature of 1640 to 1680°C in nitrogen at 200 atm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62304608A JPH01148754A (en) | 1987-12-03 | 1987-12-03 | Production of x phase sialon sintered body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62304608A JPH01148754A (en) | 1987-12-03 | 1987-12-03 | Production of x phase sialon sintered body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01148754A true JPH01148754A (en) | 1989-06-12 |
Family
ID=17935052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62304608A Pending JPH01148754A (en) | 1987-12-03 | 1987-12-03 | Production of x phase sialon sintered body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01148754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8715032B2 (en) | 2010-10-06 | 2014-05-06 | Tomy Company, Ltd. | Spinner for toy top |
-
1987
- 1987-12-03 JP JP62304608A patent/JPH01148754A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8715032B2 (en) | 2010-10-06 | 2014-05-06 | Tomy Company, Ltd. | Spinner for toy top |
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