JPS59219463A - Manufacture of al2o3 coating film - Google Patents

Manufacture of al2o3 coating film

Info

Publication number
JPS59219463A
JPS59219463A JP9474483A JP9474483A JPS59219463A JP S59219463 A JPS59219463 A JP S59219463A JP 9474483 A JP9474483 A JP 9474483A JP 9474483 A JP9474483 A JP 9474483A JP S59219463 A JPS59219463 A JP S59219463A
Authority
JP
Japan
Prior art keywords
film
al2o3
coating film
base material
frequency power
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
Application number
JP9474483A
Other languages
Japanese (ja)
Other versions
JPH0468388B2 (en
Inventor
Minoru Nakano
稔 中野
Akira Doi
陽 土居
Masaaki Tobioka
正明 飛岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP9474483A priority Critical patent/JPS59219463A/en
Publication of JPS59219463A publication Critical patent/JPS59219463A/en
Publication of JPH0468388B2 publication Critical patent/JPH0468388B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40Oxides

Abstract

PURPOSE:To obtain a coated hard member having a uniform film thickness and superior heat resistance by feeding a gaseous mixture consisting of AlCl3, H2 and CO to coat a base material with an Al2O3 film by a plasma CVD method. CONSTITUTION:A gaseous mixture consisting of H2, AlCl3 and CO or further contg. CO2 and TiCl4 is fed to coat the surface of a base material such as a sintered hard alloy, high-speed steel, ceramics or cermet with an Al2O3 film by a plasma CVD method in a reaction atmosphere such as high vacuum. The Al2O3 film formed by this method has higher toughness than a film of only Al2O3.

Description

【発明の詳細な説明】 (イ)技術分野 本発明は、耐熱性に優れた被覆硬質部材の製造法に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a method for producing a coated hard member with excellent heat resistance.

0)技術の背景 超硬合金の表面に耐摩耗性の優れたTiC,TiN。0) Technology background TiC and TiN with excellent wear resistance on the cemented carbide surface.

AT05などの硬質物質の一種又は二種以上を、一層又
は二層以上被覆した被覆超硬合金部材は、従来の超硬合
金に比べて、より優れた切削工具材料として広く実用に
供している。そのなかでもAl2O3をもちいた二重被
覆超硬合金部材は、AhOsのもつ優れた耐熱性、耐酸
化性等のため、特に優れた切削工具材料として知られて
いる。近年切削工具材料に要求される切削条件は、年々
苛酷になってきており切削速度も300m/rntn 
ヲ越エル場合も多くなってきており、より耐摩耗性に富
む切削工具材料が要求されてきている。これ等の要求+
r対し、Al2O5被覆層の膜厚を厚くする方向が知ら
れている。しかしながらA、hO3の被覆法として知ら
れているCVD法(化学蒸着法。以下CVD法と称す。
A coated cemented carbide member coated with one or more hard materials such as AT05 in one or more layers is widely used as a cutting tool material superior to conventional cemented carbide. Among these, double-coated cemented carbide members using Al2O3 are known as particularly excellent cutting tool materials because of the excellent heat resistance, oxidation resistance, etc. of AhOs. In recent years, the cutting conditions required for cutting tool materials have become more severe year by year, and the cutting speed has also increased to 300 m/rntn.
The number of cases where cutting tools are damaged is increasing, and there is a demand for cutting tool materials with higher wear resistance. These demands +
In contrast to r, it is known that the thickness of the Al2O5 coating layer is increased. However, the CVD method (chemical vapor deposition method, hereinafter referred to as CVD method) is known as a method for coating A, hO3.

)においては、Ab 03の成長速度がTiC。), the growth rate of Ab 03 was that of TiC.

TiNと比べ1/1o〜i、15と極めて遅く、厚膜化
を図ることが工業生産ト、著しく困難であること。ヌA
t205の成長速度が極めて遅いため、その反応雰囲気
は通常1QTn r r以に、好ましくは20Torr
 〜60T。
Compared to TiN, it is extremely slow at 1/10 to 15, and it is extremely difficult to thicken the film in industrial production. Nu A
Since the growth rate of t205 is extremely slow, the reaction atmosphere is usually 1QTn r r or more, preferably 20 Torr.
~60T.

rrで行なわれ、それ以−ドにすると、工業−1−1・
分な成長速度がt!)らオ]ない。CVD法において、
膜厚のバラツキは、反応雰囲気が高真空である程均−に
なることが知られているがAl2O3の場合、その成長
速度の関係から、十分な高真空で被覆が行なえないため
、膜厚のバラツキが大きく、工業生産」―歩留りの低下
が著しく好ましくなかった。
It is done in rr, and if you change it to a later code, it will be industrial-1-1.
The growth rate is t! ) Rao] No. In the CVD method,
It is known that the higher the vacuum in the reaction atmosphere, the more uniform the variation in film thickness becomes. However, in the case of Al2O3, due to its growth rate, coating cannot be performed in a sufficiently high vacuum. The variation was large and the yield was significantly lower than in industrial production.

ぐタ 発明の開示 本発明は厚膜Al2O3被覆膜を、−L業生産」二好ま
しい、改善された成長速度でかつ、歩留りの著しく改善
された製造法を提供するものである。従来のCVD法で
、改善された成長速度をもつAh、Os又ハCo 、 
H2)に1″cc、Zrおよび7・/又はHfイオンを
0.08〜O45容量%添加する方法が開示されでいる
。しかしながらこの方法は、jコしかにAl2O5被覆
膜の成長速度に関しては、改善されるものの、膜厚のバ
ラツギには何の改善ももたらすものではたかった。
DISCLOSURE OF THE INVENTION The present invention provides a method for manufacturing thick film Al2O3 coatings with improved growth rates and significantly improved yields. With conventional CVD method, Ah, Os or Co, with improved growth rate.
A method has been disclosed in which 1"cc of Zr and/or Hf ions are added to 0.08 to 045% by volume of H2).However, this method has only a small effect on the growth rate of the Al2O5 coating film. , although it was improved, it did not bring about any improvement in the variation in film thickness.

未発明の特徴を要約すると下記の通りである。The features of the invention that have not yet been invented are summarized as follows.

(1)  プラズマによって活性化された、いわゆるプ
ラズマCVD法でAl2O5膜を生成する。
(1) An Al2O5 film is generated by a so-called plasma CVD method activated by plasma.

c?)  A?C13ト”TiCl4を・容量テ0.2
 ” 30の比率で反応ガスとして用いる。
c? ) A? C13 "TiCl4" Capacity te 0.2
” used as reactant gas in a ratio of 30%.

プラズマによって活性化されたプラズマCVD法では、
その反応速度が母材の温度に依存するというよりは、プ
ラズマの電子温度(通常数千度といわれる。)に依存す
るといわれ、従来のCVD法に比べ、同一母材温度では
、著しくその成長速度が改善されることが知られでいる
。さらに加えてTiのイオンを反応ガスに添加すると、
生成したA12CB中にTiの酸化物が固溶し、Atイ
オンの表面拡11々速度を向上させるため、さらに成長
速度が改善される。又本発明では、Al2O3の成長速
度が十分に改善されているため、反応雰囲気を高真空に
しても、工業生uML、適した成長速度が得られるため
、膜厚のバラツキについても著シック改善()塩化アル
ミニウムの比率は02〜ろ0であるが、好まし2くは0
2〜20である。0.2以下では成長速度の向−にに余
り効果なく50を越えるとTiの酸化物の析出物を牛じ
1゛iの酸化物はAfzosに比し耐摩耗性で劣るため
好ましくない。(反応炉内の圧力は、01〜10TOr
r好ましくは、0.1〜2Torrである。)Q、 1
Torr未満ではプラズマ発生が不安定で、10Tor
rを越えると膜厚均一性に効果がなくなる。ブラスマを
発生させるには、15.56 Ml(zの高周波電力の
ほかマイクロ波を用いたものでも当然のことながら効果
は同じである。13.56 MI−NZの高周波電力を
用いる場合、500〜800’Cでは100W〜3KW
、800〜11] 00°C間では200〜1旧]OW
In plasma CVD method activated by plasma,
It is said that the reaction rate depends not so much on the temperature of the base material as on the electron temperature of the plasma (usually said to be several thousand degrees), and compared to the conventional CVD method, the growth rate is significantly faster at the same base material temperature. is known to be improved. Furthermore, when Ti ions are added to the reaction gas,
The Ti oxide dissolves in solid solution in the generated A12CB and improves the surface expansion rate of At ions, thereby further improving the growth rate. In addition, in the present invention, since the growth rate of Al2O3 has been sufficiently improved, even if the reaction atmosphere is set to a high vacuum, a suitable growth rate can be obtained for industrially produced uML, and the variation in film thickness can also be significantly improved ( ) The ratio of aluminum chloride is between 02 and 0, preferably 2 or 0.
It is 2-20. If it is less than 0.2, it will not have much effect on the growth rate, and if it exceeds 50, it will cause Ti oxide precipitates, and oxides with a density of 1.2% will have poorer wear resistance than Afzos, which is not preferred. (The pressure inside the reactor is 01 to 10 TOr.
r is preferably 0.1 to 2 Torr. ) Q, 1
Plasma generation is unstable below 10 Torr.
If r is exceeded, there will be no effect on film thickness uniformity. In order to generate blasta, the effect is of course the same even if microwaves are used in addition to the high frequency power of 15.56 Ml (z).When using the high frequency power of 13.56 MI-NZ, 500 ~ 100W~3KW at 800'C
, 800-11] 200-1 old between 00°C] OW
.

1000°C〜1200°Cでは500W以下の電力が
好ましい。、析出するA/′205膜の特性は反応温度
が低く高周波電力が低いほど、アモルファスあるし)は
、結晶質との混合相のものが得られ、又高電力、高温度
になるにつれ、アモルファス’t K  Iα−(1)
Ad2かあるいは混合相にするん〉によって任意の膜質
が得られる。本条件外では温度、高周波電力が高い値の
ところでは粗粒化(−5・、低い値のとこ、ろでは、充
分な成長速度が得ら第1ない。
At 1000°C to 1200°C, a power of 500W or less is preferable. The characteristics of the deposited A/'205 film are that the lower the reaction temperature and the lower the radio frequency power, the more amorphous it becomes. 't K Iα-(1)
Any film quality can be obtained by changing Ad2 or mixed phase. Outside these conditions, when the temperature and high-frequency power are high, the grains become coarse (-5.), and when the temperature and high-frequency power are low, a sufficient growth rate cannot be obtained.

上記したように、本発明では従来のAl2O5Bt体よ
りも靭性の高い膜質が得られるため、基体としでは、超
硬合金のはか1Va−、”Va 、 VIa族元素の炭
化物。
As described above, in the present invention, since a film quality with higher toughness than that of the conventional Al2O5Bt body can be obtained, carbides of group elements such as Va-, "Va, and VIa of cemented carbide are used as the substrate.

窒化物、炭窒化物等の硬質相からなるサーメット及びA
l2O5を主成分とするセラミックあるいはSiC。
Cermets and A consisting of hard phases such as nitrides and carbonitrides
Ceramic or SiC whose main component is 12O5.

513N4のセラミック等の靭性の低い基体にも応用で
きる。又当然のことながら高速度鋼のような靭性の高い
母材にも応用できる。以下実施例にて説明する。
It can also be applied to substrates with low toughness such as 513N4 ceramics. Naturally, it can also be applied to base materials with high toughness such as high-speed steel. This will be explained below using examples.

実施例1 市販のTiCコーティングチップ(商品名AC720)
型番SNMN432に酸化アルミニウムを被覆した。な
お酸化アルミニウムの被覆条件は以下の通りであった。
Example 1 Commercially available TiC coated chip (trade name AC720)
Model number SNMN432 was coated with aluminum oxide. The conditions for coating aluminum oxide were as follows.

反応気体組成 H29Q容量% Al2O3,3// CO2t5  // TiC?40.5 7/ ■   0.5〃 反応気体流速 2m/秒 反応気体圧力 2Torr 温      度  900.1000°C反応時間 
5〜10時間 又、この条件にて16.56 MI(zの高周波電力5
00WでA7z03をコーチイブした。これらの結果か
ら単位時間当りの成長速度を第1図に示した。従来の方
法での活性化エネルギーは、5 ’l kca?/mo
ff。
Reaction gas composition H29Q volume % Al2O3,3 // CO2t5 // TiC? 40.5 7/ ■ 0.5〃 Reaction gas flow rate 2m/sec Reaction gas pressure 2Torr Temperature 900.1000°C Reaction time
Under these conditions for 5 to 10 hours, the high frequency power of 16.56 MI (z
I coached A7z03 at 00W. From these results, the growth rate per unit time is shown in FIG. The activation energy in the conventional method is 5'l kca? /mo
ff.

本発明では7 kca?/ molであり、温度変化に
よる膜厚分布のバラツキが少なくなっている。本条件に
おいての0.1Torrではプラズマが不安定で10T
orrをこえると膜厚分布が大きくなった。
In the present invention, 7 kca? / mol, and the variation in film thickness distribution due to temperature changes is reduced. Under these conditions, at 0.1 Torr, the plasma is unstable and 10T
When the value exceeds orr, the film thickness distribution becomes large.

実施例2 市販のTiCコーティングチップ、型番S NMN 4
62にて以下の条件にてAl2O5の被覆を行った。な
なお反応ガスの組成以外は実施例1の条件(高周波電力
500W)と同じである。(反応時間5Hr)上記の切
削チップと比較のために、市販の6μTiCに5μA1
2osをコーティングしたもので(歯5)下記の条件で
切削テストを行った。
Example 2 Commercially available TiC coated chip, model number S NMN 4
62, coating with Al2O5 was performed under the following conditions. Note that the conditions other than the composition of the reaction gas were the same as in Example 1 (high-frequency power 500 W). (Reaction time 5 hours) For comparison with the above cutting tip, 5μA1 was added to commercially available 6μTiC.
A cutting test was conducted on the tooth coated with 2os (tooth 5) under the following conditions.

被削材 SCM435 切削条件  V = 400 m/m1nr = 0.
3″’%’rev d−15朋 6分間切削したところ、No、 ’I〜Nα6はフラン
ク摩耗が、0.25〜0.28 ynrnで切削可能で
あった。隅4゜歯5嘴、Q、39wn、 0.31 t
lノnであった。
Work material SCM435 Cutting conditions V = 400 m/m1nr = 0.
When cutting 3''%'rev d-15 for 6 minutes, it was possible to cut No. 'I to Nα6 with flank wear of 0.25 to 0.28 ynrn. Corner 4° tooth 5 beak, Q , 39wn, 0.31t
It was lnon.

実施例6 10容量%の結合相(Co、Ni)で、硬質相が60%
TiC,8%TiN、  2%Mo2C,残WCの組成
からなるサーメット及び95%A605−5%TiCセ
ララミックを基体として、実施例1と同様の反応ガス組
成で表2の条件でAJ203を5μコーテイングしtこ
Example 6 10% by volume binder phase (Co, Ni) and 60% hard phase
A cermet with a composition of TiC, 8% TiN, 2% Mo2C, and residual WC and a 95% A605-5% TiC ceramic were used as substrates, and 5μ of AJ203 was coated under the same reaction gas composition as in Example 1 and the conditions shown in Table 2. T-ko.

比較のために従来のCVD法で5μAt2osコーテイ
ングしたサーメット(No12)、セラミック (歯1
6)を実施例2の切削条件で切削テストを行った(切削
時間5分)フランク摩耗を測定したところ第6表の結果
が得られた。
For comparison, cermet (No. 12) and ceramic (tooth 1) coated with 5μAt2os using the conventional CVD method were used.
6) was subjected to a cutting test under the cutting conditions of Example 2 (cutting time: 5 minutes), and the flank wear was measured, and the results shown in Table 6 were obtained.

を示しており、Aは本発明、Bは従来のドーピングのみ
による効果を示す。
, where A shows the effect of the present invention and B shows the effect of conventional doping alone.

著1目 Al203A長速じ焚と夾I(馨温度乙のIi圭−I”
 Aゾじ?山+ Ei”:?(/jzO■、串1′1の
表示 昭和513年 1旨′1願第 9477I4吋2、発明
の名相、 Al2UJ  コーー72インク膜の製造ン去:3.l
lIit1gをJる者 出汁との関係   特、8+1出IQfi人住   所
    大阪山中1メ北ン!(5J’ll t s番地
名  称(2I()  住友市気土、Y1株式会社社長
 川−((、+i部 /11代理人 11− 19E     人1:R市此花区Jニー51
−尼11’l11番3号(l、友屯気1業株式会社 c+、1lIi正の対象 図面 7、補正の内容 図面中説明文を削除した第1図を別紙の如く1に出しま
ず許11¥] L疵・温度(0C) べ 長 止 交
Author 1st Al203A Long Speed Burning and 夾I
Azoji? Mountain + Ei”:? (/jzO■, Display of skewer 1'1 1977 1st application No. 9477I4 2, Name of the invention, Al2UJ Koh 72 Manufacture of ink film: 3.l
The relationship between the soup stock and the person who eats lIit1g Special, 8 + 1 IQfi Person Address Osaka Yamanaka 1 Mekita! (5J'll ts Address Name (2I() Sumitomo City Kedo, Y1 Co., Ltd. President Kawa-((, +i Department/11 Agent 11-19E Person 1: R City Konohana Ward J-51
- Ani 11'l11 No. 3 (l, Youtunki 1 Industry Co., Ltd. c+, 1lIi positive target drawing 7, contents of amendment Figure 1 with the explanatory text in the drawing deleted is not published in 1 as attached). ¥] L flaw/temperature (0C) long joint

Claims (1)

【特許請求の範囲】 (1)超硬合金、高速度鋼、セラミック、サーメットを
母材として該母材」―に水素9三塩化アルミニウム、−
酸化炭素と/又は二酸化炭素及び四塩化チタンの混合ガ
スを流し、該雰囲気中でプラズマCVD法でAh03膜
を被覆することを特徴とす、5ADO3コーテイング膜
の製造法。 の 特許請求の範囲第(1)項において、四塩化チタン
と三塩化アルミニウムの比率(容積)が、0.2〜30
であって、雰囲気中の圧力が、0.1〜1QtONであ
ることを特徴とするAl2O3コーテイング膜の製造法
。 (3)特許請求の範囲第(1)及び第C)項において、
プラズマ化学蒸着法を、13.56MHz、、の高周波
電力によって行い、かかる電力が反応温度500〜80
0°C未満においては、100W〜3KW、800〜1
000°C未満では、zoow〜1000W、1000
’C〜1200°Cでは、高周波電力が、500W以下
の条件下で、Mo2膜を被覆することを特徴とするAl
2O5コーテイング膜の製造法。
[Claims] (1) A cemented carbide, high-speed steel, ceramic, or cermet as a base material, hydrogen 9 aluminum trichloride in the base material "-"
A method for producing a 5ADO3 coating film, which comprises flowing a mixed gas of carbon oxide and/or carbon dioxide and titanium tetrachloride, and coating the Ah03 film by plasma CVD in the atmosphere. In claim (1), the ratio (volume) of titanium tetrachloride and aluminum trichloride is 0.2 to 30.
A method for producing an Al2O3 coating film, characterized in that the pressure in the atmosphere is 0.1 to 1QtON. (3) In claims (1) and C),
The plasma chemical vapor deposition method is carried out using a high frequency power of 13.56 MHz, which increases the reaction temperature from 500 to 80 MHz.
Below 0°C, 100W~3KW, 800~1
Below 000°C, zoow~1000W, 1000
'C to 1200°C, the high frequency power is 500W or less, and the Al film is coated with Mo2 film.
Method for manufacturing 2O5 coating film.
JP9474483A 1983-05-27 1983-05-27 Manufacture of al2o3 coating film Granted JPS59219463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9474483A JPS59219463A (en) 1983-05-27 1983-05-27 Manufacture of al2o3 coating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9474483A JPS59219463A (en) 1983-05-27 1983-05-27 Manufacture of al2o3 coating film

Publications (2)

Publication Number Publication Date
JPS59219463A true JPS59219463A (en) 1984-12-10
JPH0468388B2 JPH0468388B2 (en) 1992-11-02

Family

ID=14118630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9474483A Granted JPS59219463A (en) 1983-05-27 1983-05-27 Manufacture of al2o3 coating film

Country Status (1)

Country Link
JP (1) JPS59219463A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011360A (en) * 1973-05-30 1975-02-05
JPS5128600A (en) * 1974-09-05 1976-03-10 Kitasato Gakuen KAYOSEIPURUSHIAN BURUUNOSEIZOHOHO
JPS5410314A (en) * 1977-06-09 1979-01-25 Sandvik Ab Coated sintered carbide body and method of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011360A (en) * 1973-05-30 1975-02-05
JPS5128600A (en) * 1974-09-05 1976-03-10 Kitasato Gakuen KAYOSEIPURUSHIAN BURUUNOSEIZOHOHO
JPS5410314A (en) * 1977-06-09 1979-01-25 Sandvik Ab Coated sintered carbide body and method of making same

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JPH0468388B2 (en) 1992-11-02

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