WO1993004997A1 - HIGHLY CORROSION-RESISTANT α-SIALON SINTER AND PRODUCTION THEREOF - Google Patents
HIGHLY CORROSION-RESISTANT α-SIALON SINTER AND PRODUCTION THEREOF Download PDFInfo
- Publication number
- WO1993004997A1 WO1993004997A1 PCT/JP1992/001115 JP9201115W WO9304997A1 WO 1993004997 A1 WO1993004997 A1 WO 1993004997A1 JP 9201115 W JP9201115 W JP 9201115W WO 9304997 A1 WO9304997 A1 WO 9304997A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sintered body
- sialon
- composition
- range
- solid solution
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 238000005260 corrosion Methods 0.000 claims abstract description 24
- 230000007797 corrosion Effects 0.000 claims abstract description 24
- 229910052691 Erbium Inorganic materials 0.000 claims abstract description 5
- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 5
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims description 22
- 239000006104 solid solution Substances 0.000 claims description 21
- 150000004767 nitrides Chemical class 0.000 claims description 11
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 5
- 239000012298 atmosphere Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 abstract description 16
- 238000007254 oxidation reaction Methods 0.000 abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium(III) oxide Inorganic materials O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 35
- 239000013078 crystal Substances 0.000 description 14
- 239000012535 impurity Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910002601 GaN Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000013001 point bending Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- KIUKXJAPPMFGSW-MNSSHETKSA-N hyaluronan Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)C1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H](C(O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-MNSSHETKSA-N 0.000 description 1
- 229940099552 hyaluronan Drugs 0.000 description 1
- 229920002674 hyaluronan Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 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
Definitions
- the present invention relates to an ⁇ -sialon sintered body having high corrosion resistance and a method for producing the same.
- the nitride gay containing a promising ceramic box as high temperature structural materials are hardly sintered, conventionally prepared sintered body with Y 2 0 3, A 1 2 0 oxides such 3 as a sintering aid It is common to do.
- these sintering aids densification by normal-pressure sintering has been achieved, and it has become possible to apply it to parts with complicated shapes.
- the present inventors have disclosed a Hi-sialon sintered body in Japanese Patent Application Laid-Open Nos. 60-260471, 60-260472 and 61-91065 by an atmospheric pressure sintering method. It discloses that a sintered body having excellent mechanical properties can be obtained.
- Such a silicon nitride-based sintered body usually contains a total of about 10% by weight of an oxide-based auxiliary, and often remains as a grain boundary phase in the sintered body.
- a similar phenomenon is conceivable in the ⁇ -sialon sintered body in which some of the solid solution elements remain at the grain boundaries.
- the presence of the grain boundary phase in the sintered body is one of the causes of a decrease in high-temperature strength / corrosion resistance when using gay nitride-based ceramics as a high-temperature member. Researches on agents and crystallization treatment of the grain boundary phase have been actively conducted.
- ⁇ -Sialon has the following characteristics: A 1 at the Si position and 0 at the N position when a solid solution is formed at the Si position of the S i 3 ⁇ 4 Zong crystal structure, and Li, Mg, Y, etc. It is a substance with a structure in which a metal element penetrates and forms a solid solution, and has the feature of being stable at high temperatures.
- the penetrating solid solution of pentametal is usually added in the form of oxides, but some of these oxides do not form a solid solution but remain as grain boundary phases.
- the starting material i.e., silicon nitride, contains a few percent of SiO 2 as an impurity due to surface oxidation or the like.
- the present invention solves the above problems, and has high corrosion resistance that can withstand not only mechanical properties such as strength and toughness but also use in an environment where corrosion resistance such as oxidation resistance and chemical resistance is required. It is an object of the present invention to provide an ⁇ -sialon sintered body and a method for producing the same.
- the present inventors have result of intensive studies in order to solve the above problems, this, S c 2 0 3 and nitride Gay element which can not be dissolved in one sialon, nitride Aruminiu arm, oxides of metal elements M (Where M represents Y b, £ 1 "or 0 3 ⁇ ) And sintering in a non-oxidizing atmosphere at a temperature in the range of 1600 ° C. to 2000, and, if necessary, the sintering process.
- the sintered body obtained by further heat treating the body was found to be excellent not only in mechanical properties but also in corrosion resistance.
- the present invention provides a composition
- Mx (S i, A 1) 12 (0, N) 16 wherein M is at least one kind of single-sialon solid selected from the group consisting of Yb, Er and Dy.
- a Sialon composition represented by the following formula, wherein 0 ⁇ x ⁇ 0.8, and 0.01 to 15% by weight of the ⁇ -sialon 'composition based on the weight of the sintered body.
- S 2 O 3 which cannot be solidified, and as a grain boundary phase, the molar ratio of Sc 2 O 3 to S i O 2 is in the range of 1: 0.1 to 1:50.
- S c 2 0 3 -S i O 2 high corrosion resistance ⁇ - sialon sintered body characterized by containing a complex in.
- hyal-sialon composition is not limited to a single crystalline phase of n-sialon, but also to a composite structure of a crystalline phase of hyal-sialon and ⁇ -gallium nitride.
- These crystal phases or composite structures may be formed by sintering the raw material mixture, or may be formed at the stage of the raw material mixture before sintering. May have already formed the above-mentioned crystal phase or composite structure. 'By the way, the raw material of the nitrided aluminum and the aluminum nitride usually contains oxygen as an unavoidable anionic impurity.
- One sialon composition constituting a part of the one sialon sintered body of the present invention has a composition formula
- M is a metal element that penetrates and forms a solid solution in one sialon, and an element selected from the group consisting of Yb, Er, and Dy is used in the present invention.
- Yb is particularly preferable in the present invention.
- S c 2 0 3 is immiscible components described below, S c 20 A second phase containing 3 is formed.
- second phase is used to generically refer to phases other than the above-mentioned siren composition of the sialon-based sintered body of the present invention.
- the value of X in the above formula indicates the solid solution amount of the metal element] VI, and is in the range of 0 to x O.8, preferably 0.1 ⁇ x 0.5, more preferably 0.1 ⁇ x.4. Is a number within.
- the value of X can be one of the factors that determine the composition range of the crystal phase in the ⁇ -sialon composition. When the value is within the range, the Sialon composition represented by the above composition formula has a composite structure of an ⁇ -sialon crystal phase and a gallium nitride crystal phase, and the value of X is
- the above-mentioned ⁇ - sialon composition when sintered together with S c 2 0 3 of a specific amount that can not be dissolved with the ⁇ - Sai Aron composition, the corrosion resistance of the resulting are sintered body It was found to be much improved.
- S c 2 0 3 is a sintering aid plays a role, only contributes to promote densification of the sintered body obtained Narazu, some S c 2 0 3 was added, S i 0 remaining in the grain boundary phase 2 react with, S c 2 0 3 in the grain boundary phase - S i 0 2 complex is produced.
- High corrosion resistance in the sintered body of the present invention, such S c 2 0 3 - is thought to occur by S i 0 2 formation in the grain boundary phase structure consisting of complexes.
- S c 2 0 3 pairs S i O 2 ratio in the S c 2 0 3 -S i 0 2 complex to form a grain boundary oak is generally 1 molar ratio: 0.1 to 1: be in the range of 50 Can be. ⁇ Le ratio of 1: low hot strength of the sintered body obtained is less than 0.1, also greater than 1: 50 the effect of the addition of S c 2 0 3 becomes weak, even densification of the sintered body not Will be enough. Accordingly, the molar ratio of S c 2 0 3 pairs S i 0 2 is
- the ratio be in the range of 1: 0.2 to 1:50, especially 1: 0.4 to 1:40.
- the amount of S c 2 0 3 and S i 0 2 of the grain boundary phase can be determined by analytical electron microscope. Also, adjustment of the S c 2 0 3 pairs S i 0 2 molar ratio of S c 2 0 3 -S i 0 2 complexes of the grain boundary phase, for example, Ya adjusting the S c 2 0 3 amount It can be carried out by controlling the amount of oxygen in the raw material of nitrided nitride.
- the mono-sialon sintered body provided by the present invention can be manufactured, for example, as follows.
- nitride gay element that generates shown are ⁇ - Saiaron composition by the composition formula, aluminum nitride, and Yb 2 0 3, at least one selected from E r 2 0 3 and Dy 2 0 3 oxides, and mixed S c 2 0 3 which does not form a solid solution in a predetermined amount of the monument one sialon composition.
- Yb 2 0 3 At least one selected from E r 2 0 3 and Dy 2 0 3 oxides, and mixed S c 2 0 3 which does not form a solid solution in a predetermined amount of the monument one sialon composition.
- Yb 2 0 3 The E r 2 0 3, Dy 2 0 3 and S c 2 0 3, it is also possible to use precursor compounds which may vary in these oxides the firing conditions.
- Mixing ball mill 'it may be carried out using a vibration mill or the like, A 1 2 0 3 from it is preferable to carry out the oxidation in this case the raw material powder in an organic solvent to prevent, also grinding balls, etc.
- Nana Sialon balls, containers and resin containers In order to avoid contamination, it is desirable to use Nana Sialon balls, containers and resin containers.
- the resulting mixture is granulated and dried using a spray dryer or the like to obtain a raw material for molding.
- a molding method for example, mold molding, isostatic press molding, injection molding, or the like can be used. Since the obtained molded body usually contains an organic component such as a binder, a degreasing treatment is performed before sintering. Then, the molded body is placed in a non-oxidizing atmosphere.
- HIP high pressure sintering
- gas pressure sintering or hot pressing may be used as necessary, as a force capable of obtaining a sufficiently dense sintered body by normal pressure sintering.
- the thus obtained mono-sialon sintered body of the present invention has extremely excellent corrosion resistance such as oxidation resistance and chemical resistance.
- This high corrosion resistance of the sintered body of the present invention is achieved when Yb, Er, and / or Dy are used as the metal elements which penetrate and form a solid solution in the H-sialon.
- the sintered body of the present invention to form a dense and smooth oxide film on the surface after the oxidation test, I effect coupled with the S c 2 0 3 addition, excellent
- a sintered body formed using a solid solution element other than those described above generally has a phenomenon such as foaming on the sample surface, resulting in poor corrosion resistance.
- the Hi-Sialon sintered body of the present invention is excellent in mechanical properties, for example, bending strength, toughness, etc., and exceeds 120 OMPa (JISR 1601, three-point bending) in terms of bending strength. Things have been obtained.
- One of the characteristics of the first sialon sintered body of the present invention is that it is excellent not only in chemical stability such as corrosion resistance but also in mechanical properties.
- Fei one sialon content in the sintered body was found to vary. For example, the amount of one-sialon crystal phase shed and S c 2 0 3 added amount increases is reduced.
- This Re is S c 2 O 3 was added to react with Y b 2 O 3
- E r 2 0 3 or Dy 2 0 3 is a solid solution component of or- sialon, it is considered that in order to generate the complex, this is intended to show that it is possible amount control Ichiru name one sialon crystal phase of the sintered body by the addition amount of S c 2 0 3, the thus possible characteristic control of the sintered body.
- the ratio of the ⁇ -sialon crystal phase to the ⁇ -gaynitride crystal phase changes according to the solid solution amount X of the metal element M, and the mechanical properties such as hardness, toughness and strength Although but varies, also it becomes possible to control the same 'like the addition of S c 2 0 3.
- the ⁇ -sialon composition is characterized by being particularly excellent in mechanical properties such as strength and toughness in a low solid solution region of ⁇ 0.3. Those having this composition region are generally difficult to sinter.
- the sintered body of the present invention by S c 2 0 3 is the role of the sintering aid in the sintering process, this also having composition region improves sinterability, excellent high temperature properties, corrosion resistance
- the advantage is that ⁇ -sialon sintered bodies with excellent mechanical properties can be easily obtained.
- Gay nitride (average particle size: l / m, cation impurity content: 0.2% or less, oxygen content: 0.8%), aluminum nitride (average particle size. 'L ⁇ m, cation impurity) content: 0. 2%, oxygen content: 1. Monument), Yb 2 0 3, E r 2 0 3, D y 2 0 3 ( both average particle size: 1. 2 // m, purity: 99.9%) and Sc 2 O 3 (average particle size: 1.0 // m, purity: 99.9%) were blended at the composition ratio shown in Table 11 below and kneaded. Was. Kneading is resin y
- the treatment was carried out in a ball mill for 30 hours in ethanol using a sex pot and a ball made of ⁇ -SiA. After drying the obtained mixture, it was molded with a cold isostatic press at a pressure of 1.5 tZcm 2 , and the obtained molded body was fired at 1700 ° C for 5 hours in a nitrogen atmosphere to obtain a sintered body. .
- a test piece of 3 ⁇ 4 ⁇ 40 mm was manufactured from the obtained sintered body by flat surface grinding, and a test for evaluating oxidation characteristics was performed. The oxidation test was carried out at 1400 ° C in the air for 100 hours, and the oxidation increase value and appearance after the test were evaluated.
- Gay nitride (average particle size: 0.8 m, cation impurity content .-0.2% or less, oxygen content: 1.2%), aluminum nitride (average particle size: 1.
- Cross-linking was carried out by using a resin pot and ⁇ -Sialon balls in a vibration mill for 20 minutes in ethanol. The mixture was dried using a spray drier, and was then molded with a cold isostatic press at a pressure of 1.5 tZcm 2 , and the resulting compact was placed in a nitrogen atmosphere at a pressure of 9.8 kgf Zcm 2 1750 Sintering was performed by heating at ° C for 3 hours.
- a test piece of 3 ⁇ 4 ⁇ 40 mm was prepared from the obtained sintered body, and its bending strength (normal temperature and 125 ° C.) was evaluated and an oxidation test was performed.
- the bending test was performed by three-point bending with a span of 30 mm, and the oxidation test was performed under the same conditions as in Example 1.
- the results are shown in Table 1-2. From the results in Table 2, it can be seen that the Sialon-based sintered body of the present invention has a small decrease in strength during hot and is excellent in high-temperature characteristics.
- Comparative Examples as a solid solution elements those using Y are often oxidized amounts, or if the addition of S c 2 0 3 excessively, strength reduction in hot significant.
- the ⁇ -sialon sintered body of the present invention has excellent corrosion resistance, high temperature characteristics, mechanical strength, and the like. It is useful for components, machine tool parts, cutting tools, etc.
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- 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)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92918502A EP0602243B1 (en) | 1991-09-04 | 1992-09-01 | HIGHLY CORROSION-RESISTANT alpha-SIALON SINTER AND PRODUCTION THEREOF |
JP50510093A JP3228743B2 (ja) | 1991-09-04 | 1992-09-01 | 高耐食性α−サイアロン質焼結体及びその製造方法 |
KR1019940700728A KR970009988B1 (ko) | 1991-09-04 | 1992-09-01 | 고 내식성 α-사이알론질 소결체 및 그의 제조방법 |
DE69224068T DE69224068T2 (de) | 1991-09-04 | 1992-09-01 | alpha-SIALON SINTERAGGLOMERAT HOHER KORROSIONSBESTÄNDIGKEIT UND SEINE HERSTELLUNG |
US08/199,308 US5468696A (en) | 1991-09-04 | 1992-09-01 | Highly corrosion resistant α-sialon-like sintered body and process for preparation thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25034491 | 1991-09-04 | ||
JP3/250344 | 1991-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993004997A1 true WO1993004997A1 (en) | 1993-03-18 |
Family
ID=17206523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/001115 WO1993004997A1 (en) | 1991-09-04 | 1992-09-01 | HIGHLY CORROSION-RESISTANT α-SIALON SINTER AND PRODUCTION THEREOF |
Country Status (8)
Country | Link |
---|---|
US (1) | US5468696A (ja) |
EP (1) | EP0602243B1 (ja) |
JP (1) | JP3228743B2 (ja) |
KR (1) | KR970009988B1 (ja) |
AT (1) | ATE162166T1 (ja) |
CA (1) | CA2116964A1 (ja) |
DE (1) | DE69224068T2 (ja) |
WO (1) | WO1993004997A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998023554A1 (en) * | 1996-11-25 | 1998-06-04 | The Regents Of The University Of Michigan | IN-SITU TOUGHENED ALPHA PRIME-SiAlON-BASED CERAMICS |
EP0963965A4 (en) * | 1997-09-03 | 2001-03-21 | Sumitomo Electric Industries | SILICON NITRIDE SINTER WITH HIGH THERMAL CONDUCTIVITY AND PROCESS FOR PREPARING THE SAME |
JP3149827B2 (ja) * | 1997-09-09 | 2001-03-26 | 住友電気工業株式会社 | 窒化珪素系焼結体およびその製造方法 |
US6124225A (en) * | 1998-07-29 | 2000-09-26 | The Regents Of The University Of Michigan | Cutting tools and wear resistant articles and material for same |
US7049256B2 (en) * | 2000-11-28 | 2006-05-23 | Kennametal Inc. | SiAlON containing ytterbium and method of making |
US6693054B1 (en) * | 2000-11-28 | 2004-02-17 | Kennametal Inc. | Method of making SiAlON containing ytterbium |
US7094717B2 (en) * | 2000-11-28 | 2006-08-22 | Kennametal Inc. | SiAlON containing ytterbium and method of making |
KR100987499B1 (ko) * | 2010-07-26 | 2010-10-13 | 한국기계연구원 | 자성을 보유하는 사이알론 및 그 제조방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56129667A (en) * | 1980-03-12 | 1981-10-09 | Kagaku Gijutsucho Mukizai | Manufacture of alpha-sialon sintered body |
JPS6337073B2 (ja) * | 1984-04-07 | 1988-07-22 | Toto Ltd |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4401768A (en) * | 1982-03-15 | 1983-08-30 | Rockwell International Corporation | Si3 N4 Ceramic densified using Sc2 O3 and SiO2 |
US4425141A (en) * | 1982-05-20 | 1984-01-10 | Gte Laboratories Incorporated | Composite ceramic cutting tool |
JPS5991065A (ja) * | 1982-11-16 | 1984-05-25 | Matsushita Electric Ind Co Ltd | インク供給装置 |
SE451581B (sv) * | 1984-04-06 | 1987-10-19 | Sandvik Ab | Keramiskt material huvudsakligen baserat pa kiselnitrid, aluminiumnitrid och aluminiumoxid |
JPS60260472A (ja) * | 1984-06-04 | 1985-12-23 | 新技術事業団 | β―サイアロンを含まないα―サイアロン質焼結体 |
JPS61183169A (ja) * | 1985-02-05 | 1986-08-15 | トヨタ自動車株式会社 | 窒化珪素焼結体の製造方法 |
JPS61291463A (ja) * | 1985-06-17 | 1986-12-22 | 日本特殊陶業株式会社 | 高靭性セラミツク工具用材料 |
DE3584170D1 (de) * | 1985-12-20 | 1991-10-24 | Japan Res Dev Corp | Hochfeste keramikgegenstaende enthaltend alpha-sialon. |
US5032553A (en) * | 1989-12-18 | 1991-07-16 | Gte Products Corporation | High density high strength alpha sialon based article and process for producing same |
US5200374A (en) * | 1990-04-06 | 1993-04-06 | Ube Industries, Ltd. | Sialon-based sintered body and process for producing same |
US5173458A (en) * | 1990-12-28 | 1992-12-22 | Sumitomo Electric Industries, Ltd. | Silicon nitride sintered body and process for producing the same |
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1992
- 1992-09-01 EP EP92918502A patent/EP0602243B1/en not_active Expired - Lifetime
- 1992-09-01 DE DE69224068T patent/DE69224068T2/de not_active Expired - Fee Related
- 1992-09-01 KR KR1019940700728A patent/KR970009988B1/ko not_active IP Right Cessation
- 1992-09-01 US US08/199,308 patent/US5468696A/en not_active Expired - Fee Related
- 1992-09-01 AT AT92918502T patent/ATE162166T1/de not_active IP Right Cessation
- 1992-09-01 CA CA002116964A patent/CA2116964A1/en not_active Abandoned
- 1992-09-01 WO PCT/JP1992/001115 patent/WO1993004997A1/ja active IP Right Grant
- 1992-09-01 JP JP50510093A patent/JP3228743B2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56129667A (en) * | 1980-03-12 | 1981-10-09 | Kagaku Gijutsucho Mukizai | Manufacture of alpha-sialon sintered body |
JPS6337073B2 (ja) * | 1984-04-07 | 1988-07-22 | Toto Ltd |
Also Published As
Publication number | Publication date |
---|---|
CA2116964A1 (en) | 1993-03-18 |
EP0602243A1 (en) | 1994-06-22 |
EP0602243A4 (en) | 1995-05-10 |
JP3228743B2 (ja) | 2001-11-12 |
DE69224068T2 (de) | 1998-05-14 |
US5468696A (en) | 1995-11-21 |
DE69224068D1 (de) | 1998-02-19 |
ATE162166T1 (de) | 1998-01-15 |
EP0602243B1 (en) | 1998-01-14 |
KR970009988B1 (ko) | 1997-06-20 |
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