JPS61286271A - Fiber reinforced ceramic material for tool - Google Patents
Fiber reinforced ceramic material for toolInfo
- Publication number
- JPS61286271A JPS61286271A JP60124412A JP12441285A JPS61286271A JP S61286271 A JPS61286271 A JP S61286271A JP 60124412 A JP60124412 A JP 60124412A JP 12441285 A JP12441285 A JP 12441285A JP S61286271 A JPS61286271 A JP S61286271A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic material
- tool
- reinforced ceramic
- weight
- fiber reinforced
- 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
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は高密度で靭性の強いアルミナ系のセラミックス
材料特に810ウイスカーで強化された工゛ 具を製造
するためのセラミックス材料組成物に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ceramic material composition for producing high density and tough alumina-based ceramic materials, particularly tools reinforced with 810 whiskers.
(従来の技術) アルミナはセラミックス材料の代表的なもので。(Conventional technology) Alumina is a typical ceramic material.
耐熱性、耐食性に優れており、その強度を高めることに
よって工具等への応用が期待されている。It has excellent heat resistance and corrosion resistance, and is expected to be applied to tools by increasing its strength.
最近に至シセラミックの強化手段として繊維強化セラミ
ックス(FRO)が有望視されておシ、特に高温での靭
性劣化に対しては極めて有効な手段であると云われてお
)工具材料への応用が期待されている。Recently, fiber-reinforced ceramics (FRO) has been seen as a promising means of reinforcing ceramics, and is said to be an extremely effective means of preventing toughness deterioration at high temperatures.) Application to tool materials is expected.
ところでマトリックスとして工具用に好適とされている
A1,0□を用い1分散繊維として810ホイスカーを
用い、従来から慣用されているA1!03焼結剤を添加
して作成した繊維強化アルミナは、単なる社、0.の焼
結体に比べかな)の靭性の向上が認められてはいるもの
の未だ十分に市場の要求を満足し得るものではなかった
。By the way, fiber-reinforced alumina made by using A1,0□, which is suitable for tools as a matrix, using 810 whiskers as a dispersed fiber, and adding A1!03 sintering agent, which has been conventionally used, is a simple material. Company, 0. Although it has been recognized that the toughness has been improved compared to the sintered bodies of
その原因について種々検討したと9ろA’l、O,と8
10ホイスカーとの間の親和性が悪いてとによってホイ
スカーの分散強化効果が生かされていない為と思われた
。After various studies on the cause, 9, A'l, O, and 8
This was thought to be because the dispersion-enhancing effect of the whiskers was not utilized due to poor affinity with the whiskers.
即ち810自体はもともとAI、O,との親和性が悪く
更にホイスカーは焼結の駆動力となる格子欠陥が極めて
少ないので、一層両者の親和性は悪化されている。That is, 810 itself originally has poor affinity with AI and O, and furthermore, since whisker has extremely few lattice defects that act as a driving force for sintering, the affinity between them is even worse.
、従って従来は通常の社、0.焼結体に比ベホイスカー
を添化する場合、焼結助剤を多くしたヤ、焼結温度を上
げたシ、更(=は加圧焼結法を用いたりして、マトリッ
クスを過焼結させていたのが現状である。, so conventionally the normal company, 0. When whiskers are added to a sintered body, the matrix is over-sintered by increasing the sintering aid, raising the sintering temperature, or using a pressure sintering method. The current situation is that
(発明が解決しようとする問題点)
上記の従来法によるときはAI、Q、マトリックス自体
の強度を低下させ、更に社、0.マトリックスとSiC
ホイスカーとが十分に密着していないので、最終焼結体
は十分な靭性強度を得ることが°できなかった。(Problems to be Solved by the Invention) When using the above conventional method, the strength of the AI, Q, and matrix itself is reduced, and furthermore, the strength of the company, 0. Matrix and SiC
Since the whiskers were not in close contact with each other, the final sintered body could not obtain sufficient toughness and strength.
(問題点を解決しようとするための手段)本発明は上記
の問題点を種々検討の結果、 AI、O。(Means for solving the problems) The present invention is based on the results of various studies on the above problems.
マトリックスとEliCホイスカーの親和性を改善すれ
ばセラミックの靭性を改善し得るとの着想に基づきなさ
れたもので、特に両者の親和性は810ホイスカーの表
面を改質することによJ)、Al、O,マトリックスと
の密着性を向上させ得るという知見に基づくものである
。This was done based on the idea that the toughness of the ceramic could be improved by improving the affinity between the matrix and the EliC whiskers. This is based on the knowledge that adhesion with O and the matrix can be improved.
即ち、本発明は、日10ホイヌカーを10〜60重量%
、O!LO%MgO1810! 、Zr 01 s N
10 s Yt Os −ランタノイドの酸化物から
選ばれた一種以上0.1〜7重jl、B、 01AIN
、BaO及び[131、氾、’1.)7/fF、ffa
S Vat ′vIL族の遷移金属−1の硼化物から選
択された一種以上0.05〜7重笹チ、残部Al、O,
からなる組成のセラミックス材料である。That is, in the present invention, 10 to 60% by weight of day 10 hoinuka
, O! LO%MgO1810! , Zr 01 s N
10 s Yt Os - One or more selected from lanthanoid oxides 0.1 to 7 heavy jl, B, 01AIN
, BaO and [131, Flood, '1. )7/fF, ffa
S Vat 'v 0.05 to 7 or more borides selected from the borides of transition metals in the IL group, the balance being Al, O,
It is a ceramic material with a composition consisting of:
(作用)
上記に於て810ホイスカーは10重ffi%よシ少な
い場合は補強効果が少な過ぎ、60重量%を越えた場合
は焼結性が低下するので好ましくない。(Function) In the above, if the 810 whisker is less than 10% by weight, the reinforcing effect will be too small, and if it exceeds 60% by weight, the sinterability will deteriorate, which is not preferable.
OaQ、MgO1S’Os % ”’J s ”Q s
”*O* ランタノイドの酸化物は焼結助剤であシ
、アルミナマトリックスを焼結させる助剤であるが、0
.1重祉−未満ではその効果が小さ過ぎ、逆に7重量%
を越えた場合は靭性の低下が著るしい。OaQ, MgO1S'Os % ”'J s ”Q s
``*O* Lanthanoid oxide is a sintering aid, which is an aid for sintering the alumina matrix, but 0
.. If it is less than 1 weight percent, the effect is too small; conversely, if it is less than 7% by weight
If it exceeds this, there will be a significant decrease in toughness.
更にB%O,Alli%BaO及び「81、A1、Y。Furthermore, B%O, Alli%BaO and "81, A1, Y.
ランタノイドs W’s V’@ ’/1a族の遷移金
属」の硼化物は社、0.マトリックスに対し添加された
SICホイスカーの親和性を向上するもので、特にり、
05M量蚤未満では十分な効果が得られず、又、7重1
%を越えた場合は81 との化合物ができ易くなシマ
トリックスとホイスカー界面の強度が低下し、良好な結
果が得られない。The borides of lanthanoids W's V'@'/transition metals of group 1a are available from Co., Ltd., 0. It improves the affinity of SIC whiskers added to the matrix, especially
If the amount is less than 0.05M, sufficient effect will not be obtained, and if the amount is less than 7
If it exceeds 81%, the strength of the interface between the cymatrix and the whisker, which tends to form compounds with 81, decreases, making it impossible to obtain good results.
なおff−%va、■a族の遷移金属を念のため記載す
れば■a族:T1、Zr、va族’V、Ml)。Incidentally, ff-%va, ①A group transition metals are listed just in case: ①a group: T1, Zr, va group 'V, Ml).
■a族Or、M□で番る。■ Number a group Or, M □.
(実施例)
原料粉末として平均粒径0.7μmのA1gos粉末と
、81Cホイスカー(直径0.1〜1.0μ属主体径0
.2〜0.5μm、長さ50〜200μ馬、アスペクト
比50〜300、密度3.19777cm” )と、平
均粒径0,5〜L5−の焼結助剤(OaQ、Mg0゜8
10、 、ZrO,、NiO、Y、O,、ランタ肉ドの
酸化物)と、平均粒径0,5〜5 pmのB 、 A−
LH、B2O及び「81、Y、ランタノイド、■a%v
a、■a族の遷移金属」の硼化物(添加物)とを表1の
、配合割合で配合し、ボールミル゛の中で2時間混合し
たのち、乾燥して素地粉末を調整し、この素地粉末を表
1に示す郷結温度で、圧力200 kg 7cm”、加
圧時間15分で加圧焼結法にょ夛、黒鉛型内において焼
結した。(Example) A1gos powder with an average particle size of 0.7 μm as raw material powder and 81C whisker (diameter 0.1-1.0 μm main body diameter 0
.. 2-0.5μm, length 50-200μm, aspect ratio 50-300, density 3.19777cm”) and sintering aids (OaQ, Mg0゜8) with an average particle size of 0.5-L5-
10, , ZrO, , NiO, Y, O, , oxides of Lanta) and B, A- with an average particle size of 0.5 to 5 pm.
LH, B2O and "81, Y, lanthanoid, ■a%v
borides (additives) of transition metals of group a and group a are blended in the proportions shown in Table 1, mixed for 2 hours in a ball mill, dried to prepare a base powder, and The powder was sintered in a graphite mold using a pressure sintering method at the sintering temperature shown in Table 1 at a pressure of 200 kg 7 cm'' for 15 minutes.
このようにして得られた焼結体をダイヤモンド砥石を用
いテ8NGN 4327N 1表面38以下(J工sに
よる)に研摩し、硬さ測定及び以下に示す条件の切削テ
ストを行なった。その結果は表1に示すとおシである。The thus obtained sintered body was ground using a diamond grindstone to a surface of 38 mm or less (according to J.E.S.), and the hardness was measured and a cutting test was conducted under the conditions shown below. The results are shown in Table 1.
切削テストの条件
を被切削材: FO23
切削条件:切削速度(7)= 150 m/min送ル
速度(f)〜0.6 yut / rev切シ込みlt
) = 2 MII
寿命判定: 12 Qtxzφの線材を1山の幅1cm
山間の間隔5朋に切
削した場合欠損までの切削山
数を測定
(発明の効果)
本発明によればAl、 Qjと810ホイスカーとをB
1C%Al1%B、O及び「Sl、A1、Y、ランタノ
イド、■a、VIL、VIAL族の遷移金属」の硼化物
によって親和性を向上することができ、又、規定された
各成分比によって耐熱性、耐食性に優れているばかりで
な(、強度を高めた製品を製造することが可能であるの
で特性の秀れたセラミック製工具を提供することができ
る。Cutting test conditions Work material: FO23 Cutting conditions: Cutting speed (7) = 150 m/min Feed speed (f) ~ 0.6 yut / rev cutting depth lt
) = 2 MII Life Judgment: 12 Wire of Qtxzφ with a width of 1 cm per thread
Measurement of the number of cut ridges until breakage when cutting with a pitch of 5 mm between the ridges (effect of the invention) According to the present invention, Al, Qj and 810 whiskers are
The affinity can be improved by boride of 1C%Al1%B, O and "Sl, A1, Y, lanthanoid, ■ a, VIL, VIAL group transition metal", and by the specified ratio of each component. Ceramic tools not only have excellent heat resistance and corrosion resistance (but can also be manufactured with increased strength), making it possible to provide ceramic tools with excellent properties.
Claims (1)
SiO_2、ZrO_2、NiO、Y_2O_3、ラン
タノイドの酸化物から選ばれた一種以上0.1〜7重量
%、B、C、AlN、B_4C及び「Si、Al、Y、
ランタノイド、週期律表IVa、Va、VIa族の遷移金属
」の硼化物から選ばれた一種以上0.05〜7重量%、
Al_2O_3残部からなることを特徴とする工具用繊
維強化セラミックス材料SiC whiskers 10-60% by weight, CaO, MgO,
0.1 to 7% by weight of one or more selected from SiO_2, ZrO_2, NiO, Y_2O_3, lanthanoid oxides, B, C, AlN, B_4C and "Si, Al, Y,
0.05 to 7% by weight of one or more borides selected from lanthanoids, borides of transition metals of groups IVa, Va, and VIa of the Periodic Table;
Fiber-reinforced ceramic material for tools characterized by consisting of the balance of Al_2O_3
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60124412A JPS61286271A (en) | 1985-06-10 | 1985-06-10 | Fiber reinforced ceramic material for tool |
DE8686107916T DE3662782D1 (en) | 1985-06-10 | 1986-06-10 | Fiber-reinforced compositie material for tools |
EP86107916A EP0208910B2 (en) | 1985-06-10 | 1986-06-10 | Fiber-reinforced compositie material for tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60124412A JPS61286271A (en) | 1985-06-10 | 1985-06-10 | Fiber reinforced ceramic material for tool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61286271A true JPS61286271A (en) | 1986-12-16 |
JPH0520379B2 JPH0520379B2 (en) | 1993-03-19 |
Family
ID=14884830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60124412A Granted JPS61286271A (en) | 1985-06-10 | 1985-06-10 | Fiber reinforced ceramic material for tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61286271A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1037169C (en) * | 1991-12-03 | 1998-01-28 | 先进复合材料公司 | Pressureless sintering of whisker reinforced alumina composites |
CN111875377A (en) * | 2020-08-03 | 2020-11-03 | 湖南省新化县林海陶瓷有限公司 | Insulating and positioning ceramic external member material and preparation process thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102330A (en) * | 1976-02-25 | 1977-08-27 | Nippon Carbon Co Ltd | Fiber reinforced compound materials |
JPS5559914A (en) * | 1978-10-27 | 1980-05-06 | Kobayashi Bolt Kogyo | Preparation of reinforced clay burned article |
JPS569286A (en) * | 1979-07-05 | 1981-01-30 | Yutaka Yuuki | Manufacture of ceramic |
JPS56120569A (en) * | 1980-02-26 | 1981-09-21 | Hitachi Metals Ltd | Ceramic for cutting tool |
JPS58120571A (en) * | 1982-01-09 | 1983-07-18 | 日本特殊陶業株式会社 | High-tenacity ceramic sintered body |
JPS5954675A (en) * | 1982-09-24 | 1984-03-29 | 住友電気工業株式会社 | Manufacture of fiber reinforced silicon carbide sintered body |
JPS59203765A (en) * | 1983-04-28 | 1984-11-17 | 日立金属株式会社 | Ceramics for cutting tool |
-
1985
- 1985-06-10 JP JP60124412A patent/JPS61286271A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52102330A (en) * | 1976-02-25 | 1977-08-27 | Nippon Carbon Co Ltd | Fiber reinforced compound materials |
JPS5559914A (en) * | 1978-10-27 | 1980-05-06 | Kobayashi Bolt Kogyo | Preparation of reinforced clay burned article |
JPS569286A (en) * | 1979-07-05 | 1981-01-30 | Yutaka Yuuki | Manufacture of ceramic |
JPS56120569A (en) * | 1980-02-26 | 1981-09-21 | Hitachi Metals Ltd | Ceramic for cutting tool |
JPS58120571A (en) * | 1982-01-09 | 1983-07-18 | 日本特殊陶業株式会社 | High-tenacity ceramic sintered body |
JPS5954675A (en) * | 1982-09-24 | 1984-03-29 | 住友電気工業株式会社 | Manufacture of fiber reinforced silicon carbide sintered body |
JPS59203765A (en) * | 1983-04-28 | 1984-11-17 | 日立金属株式会社 | Ceramics for cutting tool |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1037169C (en) * | 1991-12-03 | 1998-01-28 | 先进复合材料公司 | Pressureless sintering of whisker reinforced alumina composites |
CN111875377A (en) * | 2020-08-03 | 2020-11-03 | 湖南省新化县林海陶瓷有限公司 | Insulating and positioning ceramic external member material and preparation process thereof |
Also Published As
Publication number | Publication date |
---|---|
JPH0520379B2 (en) | 1993-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |