JPH04161240A - Wurtzite-type boron nitride and carbon powder and its manufacture - Google Patents
Wurtzite-type boron nitride and carbon powder and its manufactureInfo
- Publication number
- JPH04161240A JPH04161240A JP28983190A JP28983190A JPH04161240A JP H04161240 A JPH04161240 A JP H04161240A JP 28983190 A JP28983190 A JP 28983190A JP 28983190 A JP28983190 A JP 28983190A JP H04161240 A JPH04161240 A JP H04161240A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- boron nitride
- pressure
- powders
- carbon powder
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052582 BN Inorganic materials 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 80
- 239000013078 crystal Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 229910052796 boron Inorganic materials 0.000 claims description 16
- 239000000470 constituent Substances 0.000 claims description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 9
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 4
- 238000000227 grinding Methods 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009725 powder blending Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
- B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/065—Composition of the material produced
- B01J2203/066—Boronitrides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、硬質にして、結晶粒径か２０睡以上の粗粒
であり、したかって、例えば砥石の硬質粒子として用い
るのに適したウルツアイト型炭窒化ほう素（以下、Ｗ−
ＢＣＮて示す）粉末、およびその製造法に関するもので
ある。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to wurtzite, which is hard and has coarse grains with a crystal grain size of 20 or more, and is therefore suitable for use as hard particles in grinding wheels, for example. type boron carbonitride (hereinafter referred to as W-
BCN) powder and its manufacturing method.
従来、一般に原料粉末として、窒化ほう素（以下、ＢＮ
で示す）粉末および炭素粉末を用い、これら原料粉末を
、重量％で、主要割合で示せば、炭素粉末：３３％、
ＢＮ粉末：残り、
に配合し、混合した後、通常の高温高圧装置にて、温度
： ３０００℃以上、
圧力、１万気圧以上、
の条件で加熱して、構成元素の主要割合か、原子％で、
Ｃ：３３％、 Ｎ：３３％、 Ｂ：残り、から
なる六方晶型炭窒化ほう素（以下、ｈ−ＢＣＮで示す）
粉末を製造する方法が知られている。Conventionally, boron nitride (hereinafter referred to as BN) has generally been used as a raw material powder.
) powder and carbon powder, these raw material powders are expressed as main proportions in weight%: carbon powder: 33%, BN powder: remainder. Heating at a temperature of 3000℃ or higher and a pressure of 10,000 atmospheres or higher, the main proportions of the constituent elements or atomic % are hexagonal, consisting of C: 33%, N: 33%, B: the remainder. Crystalline boron carbonitride (hereinafter referred to as h-BCN)
Methods of producing powders are known.
また、特開昭５３−１０１０００号公報に記載される通
り、上記の従来方法などで製造されたｈ−ＢＣＮ粉末を
、Ｆｅ−Ａ、１１１合金粉末などの触媒と混合した状態
で、同じく通常の高温高圧装置を用いて、温度：１３０
０〜２０００℃、 圧力、５〜１０万気圧、の条件で
加圧して変態せしめることにより立方晶型炭窒化ほう素
（以下、ｃ−ＢＣＮで示す）を製造する方法が知られて
いる。In addition, as described in JP-A-53-101000, h-BCN powder produced by the above-mentioned conventional method is mixed with catalysts such as Fe-A and 111 alloy powder, and Temperature: 130 using high temperature and high pressure equipment
There is a known method for producing cubic boron carbonitride (hereinafter referred to as c-BCN) by pressurizing and transforming the material under conditions of 0 to 2000[deg.] C. and 50,000 to 100,000 atm.
しかし、上記の従来方法で製造されたｈ−ＢＣＮ粉末は
、結晶粒径で３１Ｂｖ以下とあまりにも細粒であり、か
つ軟質であるために、例えば砥石の製造に硬質粒子とし
て適用することはできず、一方同じく上記の従来方法で
製造されたｃ−ＢＣＮ粉末は、結晶粒径で１００−以下
と相対的に粗粒ではあるが、上記触媒の混入が原因で、
きわめて脆く、欠は易いので砥石への実用化は困難であ
るのが現状である。However, the h-BCN powder produced by the above-mentioned conventional method is too fine with a crystal grain size of 31 Bv or less, and is too soft, so it cannot be applied as hard particles to the production of grindstones, for example. On the other hand, the c-BCN powder produced by the conventional method described above is relatively coarse with a crystal grain size of 100 or less, but due to the inclusion of the catalyst,
Currently, it is difficult to put it to practical use in grindstones because it is extremely brittle and easily breaks.
そこで、本発明者等は、上述のような観点から、現在あ
まり注目されていないＷ−ＢＣＮ粉末に着目し、研究を
行なった結果、
（１） 上記の従来方法で製造されたｈ−ＢＣＮ粉末
、すなわち構成元素の主要割合が、原子％で、Ｃ：３３
％、 Ｎ：３３％、 Ｂ：残り、からなるｈ−
ＢＣＮ粉末の結晶構造をウルツアイト型に変態せしめる
べく、これにｌＯ万負気圧以上圧力で加圧処理を施して
も、結晶粒径で１ｕｍ以下の細粒のＷ−ＢＣＮ粉末しか
得られないこと。Therefore, from the above-mentioned viewpoint, the present inventors focused on W-BCN powder, which currently does not attract much attention, and as a result of conducting research, (1) h-BCN powder produced by the above conventional method. , that is, the main proportion of the constituent elements is C:33 in atomic %.
%, N: 33%, B: remainder, h-
To transform the crystal structure of BCN powder into a wurtzite type, even if the BCN powder is subjected to pressure treatment at a pressure of 10,000 negative pressure or more, only fine W-BCN powder with a crystal grain size of 1 um or less can be obtained.
（２）シかし、上記の従来ｈ−ＢＣＮ粉末の製造方法に
おいて、原料粉末である炭素粉末の配合割合を全体に占
める割合で２〜３０重量％と低くする（この結果ＢＮ粉
末の配合割合が相対的に高くなる）と、製造されたｈ−
ＢＣＮ粉末は、構成元素であるＢとＣとＮの割合が、原
子％で、Ｃ，２〜２０％、 Ｎ：４０〜４９％、Ｂ
二残り （たたし４０〜４９％）、
からなると共に、結晶粒径で２０−以上の粗粒となるこ
と。(2) However, in the conventional h-BCN powder manufacturing method described above, the blending ratio of carbon powder, which is the raw material powder, is reduced to 2 to 30% by weight relative to the total (as a result, the blending ratio of BN powder is relatively high), and the produced h-
BCN powder has the proportions of the constituent elements B, C, and N in atomic percent: C: 2 to 20%, N: 40 to 49%, B
2 remainder (40 to 49%) and coarse grains with a crystal grain size of 20 or more.
（３）上記（２）で製造された２０ｔａ以上の結晶粒径
を有する粗粒のｈ−ＢＣＮ粉末に、１０万気圧以上の圧
力で加圧処理を施すと、構成元素の割合が、原子％で、
Ｃ： ２〜２０％、 Ｎ 二 ４０〜４９
％、Ｂ：残り（たたし４０〜４９％）、
からなり、かつ２０節以上の結晶粒径をもった粗粒のｗ
−Ｂ ＣＮ粉末が得られること。(3) When the coarse-grained h-BCN powder having a crystal grain size of 20 ta or more produced in (2) above is subjected to pressure treatment at a pressure of 100,000 atm or more, the proportion of the constituent elements decreases by atomic percent. So, C: 2-20%, N2 40-49
%, B: remaining (40 to 49%), and coarse grain w with a crystal grain size of 20 nodes or more
-B CN powder can be obtained.
（４）上記（３）で製造されたｗ−ＢＣＮ粉末は、触媒
などを一切混入せずに製造されたものであるので、きわ
めて硬質で、欠は難く、かっ粗粒であることと相まって
、例えば砥石の硬質粒子などとして用いた場合にすぐれ
た性能を発揮すること。(4) Since the w-BCN powder produced in (3) above was produced without any catalyst mixed in, it is extremely hard, hard to chip, and coarsely grained. For example, it should exhibit excellent performance when used as hard particles in grinding wheels.
以上（１）〜（４）の研究結果を得たのである。The above research results (1) to (4) were obtained.
この発明は、上記の研究結果にもとづいてなされたもの
であって、
原料粉末として、ＢＮ粉末と炭素粉末を用い、これら原
料粉末を、
炭素粉末：２〜３０重量％、
ＢＮ：残り、
の割合に配合し、混合した後、通常の高温高圧装置にて
、
温度： ３０００℃以上、 圧力：１万気圧以上、の
条件で加熱して、構成元素の主要割合が、原子％で、
Ｃ： ２〜２０％、 Ｎ ： ４０〜
４９％、Ｂ：残り（ただし４０〜４９％）、
からなり、かつ２０郁以上の結晶粒径をもった粗粒のｈ
−ＢＣＮ粉末を形成し、
ついで、このｈ−ＢＣＮ粉末に、１０万気圧以上の圧力
で加圧処理を施して、変態せしめることによりｗ −Ｂ
ＣＮ粉末を製造する方法、並びにこの方法で製造され
た、構成元素であるＢとＣとＮの割合が、原子％で、
Ｃ：２〜２０％、 Ｎ：４０〜４９％、Ｂ：残り（
ただし４０〜４９％）、
からなり、かつ２０虜以上の結晶粒径を有する粗粒のｗ
−Ｂ ＣＮ粉末、
に特徴を有するものである。This invention was made based on the above research results, and uses BN powder and carbon powder as raw material powders, and these raw material powders have the following ratios: carbon powder: 2 to 30% by weight, BN: remainder. After mixing, the mixture is heated in a normal high-temperature, high-pressure device at a temperature of 3000°C or higher and a pressure of 10,000 atmospheres or higher, so that the main proportions of the constituent elements are atomic % and C: 2. ~20%, N: 40~
49%, B: remainder (however, 40 to 49%), and coarse grain h with a crystal grain size of 20 or more
-BCN powder is formed, and then this h-BCN powder is subjected to pressure treatment at a pressure of 100,000 atmospheres or more to transform w -B
The method for producing CN powder and the proportions of the constituent elements B, C, and N produced by this method are as follows in atomic %: C: 2 to 20%, N: 40 to 49%, B: the remainder (
However, coarse-grained w consisting of 40-49%) and having a crystal grain size of 20 or more
-B CN powder, which has the following characteristics.
なお、この発明のｗ−ＢＣＮ粉末の構成元素の割合、お
よび製造条件を上記の通りに限定したのは以下の理由に
よるものである。The reason why the proportions of constituent elements and manufacturing conditions of the w-BCN powder of this invention are limited as described above is as follows.
Ａ、構成元素の割合
原子％で、Ｃ成分の割合が２％未満、すなわち等全割合
のＢ成分とＮ成分がそれぞれ４９％を越えて多くなりす
ぎると、粉末に所望の高硬度を確保することができず、
一方Ｃ成分の割合が２０％を越えると、相対的に等全割
合のＢ成分とＮ成分の割合が４０％未満と少なくなりす
ぎ、製造された粉末の結晶粒径か細粒化し、２０訊以上
の結晶粒径の粉末を得ることかできなくｔλることから
、その割合を、Ｃ：２〜２０％、Ｎ：４０〜４９％、Ｂ
：残り（ただしＮと同当量の４０〜４９％）と定めた。A. Proportion of constituent elements If the proportion of C component is less than 2% in atomic %, that is, the proportion of B component and N component in equal total proportion exceeds 49% each, it is difficult to ensure the desired high hardness in the powder. I can't do it,
On the other hand, if the proportion of the C component exceeds 20%, the proportion of the B component and the N component, which have a relatively equal total proportion, becomes too small, less than 40%, and the crystal grain size of the produced powder becomes finer than 20%. Since it is impossible to obtain powder with a crystal grain size of more than
: The remainder (40 to 49% of the same equivalent amount as N).
Ｂ、製造条件
（ａ） 炭素粉末の配合割合
その配合割合が２重量％未満では、中間的に製造される
ｈ −ＢＣＮ粉末および最終的に製造されるｗ−ＢＣＮ
粉末におけるＣ成分の割合が２原子％未満となってしま
い、製造される粉末の硬さが低下するようになり、一方
その配合割合が３０％を越えると、上記ｈ−ＢＣＮ粉末
の結晶粒径が細粒化し、強いてはＷ−ＢＣＮ粉末の結晶
粒径も微細化するようになって、結晶粒径が２０−以上
の粗粒のｗ−ＢＣＮ粉末を製造することができなくなる
ことから、その配合割合を２〜３０重量％と定めた。B. Manufacturing conditions (a) Carbon powder blending ratio If the blending ratio is less than 2% by weight, intermediately produced h-BCN powder and finally produced w-BCN
If the proportion of C component in the powder is less than 2 atomic %, the hardness of the produced powder will decrease. On the other hand, if the proportion exceeds 30%, the crystal grain size of the h-BCN powder will decrease. becomes finer, and even the crystal grain size of the W-BCN powder becomes finer, making it impossible to produce coarse-grained w-BCN powder with a crystal grain size of 20 or more. The blending ratio was set at 2 to 30% by weight.
（ｂ） ｈ −Ｂ ＣＮ粉末の製造条件３０００℃未
満の温度、および１天気圧未満の圧力では、ＢＮとＣの
合成によるｈ−ＢＣＮ粉末の製造が十分に行なわれない
゛ことから、温度： ３０００℃以上、圧力＝１１万気
圧上と定めた。(b) Conditions for producing h-B CN powder At temperatures below 3,000°C and pressures below 1 weather pressure, production of h-BCN powder through the synthesis of BN and C cannot be carried out satisfactorily. Therefore, temperature: The temperature was set at 3,000°C or higher and the pressure at 110,000 atmospheres.
（ｃ）ｗ−ＢＣＮ粉末の製造条件
ｌＯ万気圧未満の圧力ではｈ −ＢＣＮ粉末のＷ−ＢＣ
Ｎ粉末への変換が不十分であることから、その圧力を１
０万気圧以上と定めた。(c) Manufacturing conditions for w-BCN powder At a pressure less than 10,000 atmospheres, the W-BC of h-BCN powder
Since the conversion to N powder was insufficient, the pressure was reduced to 1
The pressure was set at 00,000 atmospheres or higher.
つぎに、この発明のｗ−ＢＣＮ粉末およびその製造法を
実施例により具体的に説明する。Next, the w-BCN powder of the present invention and its manufacturing method will be specifically explained with reference to Examples.
原料粉末として、それぞれ第１表に示される平均粒径お
よび結晶型を有するＢＮ粉末、および黒鉛粉末を用い、
これら原料粉末を同じく第１表に示される割合に配合し
、通常の条件で混合した後、通常のピストンシリンダ型
高温高圧装置にて、第１表に示される条件で加熱して同
じく第１表に示される粒度分布をもったｈ−ＢＣＮ粉末
を製造し、引続いて、これらのｈ−ＢＣＮ粉末に、通常
のブリッジマン型高圧装置を用いて、第１表に示される
圧力を付加することにより本発明法１〜６を実施し、本
発明ｗ−ＢＣＮ粉末を製造した。As raw material powders, BN powder and graphite powder each having the average particle size and crystal type shown in Table 1 were used,
These raw material powders were blended in the proportions shown in Table 1, mixed under normal conditions, and then heated in a normal piston-cylinder type high-temperature, high-pressure device under the conditions shown in Table 1. Producing h-BCN powders having a particle size distribution shown in Table 1, and subsequently applying pressures shown in Table 1 to these h-BCN powders using a conventional Bridgman-type high-pressure device. Methods 1 to 6 of the present invention were carried out to produce w-BCN powder of the present invention.
この結果得られた本発明ｗ−ＢＣＮ粉末１〜６は、第２
表に示される構成元素割合および粒度分布をもつもので
あった。The w-BCN powders 1 to 6 of the present invention obtained as a result are the second
It had the constituent element ratio and particle size distribution shown in the table.
また、本発明ｗ −Ｂ ＣＮ粉末１〜６のうちの本発明
ｗ−ＢＣＮ粉末１を用い、これより分級にて１００±１
０１１１＠の結晶粒径範囲の粉末を取り出し、これをＣ
ｕ−５ｎ系合金のメタルボンドを用いて、集中度・３５
にして、幅；３ｍＪｌ×長さ：ｌＯ龍の寸法をもった研
削用砥石に仕上げ、この砥石で、速度：５０ｒｎ／ｓｉ
ｎ、 ホーン圧力： ５ｋｇ／ｃｄ。In addition, using the present invention w-BCN powder 1 among the present invention w-B CN powders 1 to 6, it was classified to 100±1
0111@ is taken out from the powder with a grain size range of 0111@, and this is
Using U-5N alloy metal bond, the concentration level is 35.
Finished with a grinding wheel with the dimensions of Width: 3mJl x Length: 10. With this grindstone, Speed: 50rn/si.
n, Horn pressure: 5kg/cd.
の条件で鋳鉄（Ｆ Ｃ２５）の研削を行ない、研削効率
（比材料除去能率）を測定したところ、５ｍｍ／ａｉｎ
を示した。When grinding cast iron (FC25) under the following conditions and measuring the grinding efficiency (specific material removal efficiency), it was found to be 5mm/ain.
showed that.
なお、比較の目的で、硬質粒子の材質をＣ−ＢＮ（立方
晶型窒化ほう素）とする以外は同じ条件で製造した研削
用砥石の場合は、同一の条件での研削で、１ｍｍ／ｗｉ
ｎの研削効果を示すにすぎなかった。For the purpose of comparison, in the case of a grinding wheel manufactured under the same conditions except that the material of the hard particles was C-BN (cubic boron nitride), the grinding speed was 1 mm/wi when grinding under the same conditions.
It merely showed the grinding effect of n.
第１表および第２表に示される結果から、本発明法１〜
６により製造されたｗ−ＢＣＮ粉末１〜６は、いずれも
結晶粒径か２０μｍ以上の粗粒であり、かつきわめて硬
質なので、これを用いて砥石を製造した場合、すぐれた
研削効率を示すことが明らかである。From the results shown in Tables 1 and 2, it can be seen that methods 1 to 1 of the present invention
All of the w-BCN powders 1 to 6 produced in Example 6 have coarse grains with a crystal grain size of 20 μm or more and are extremely hard, so when a grindstone is produced using them, they exhibit excellent grinding efficiency. is clear.
上述のように、この発明の方法によれば、今迄全く注目
されず、したかって工業的規模での製造はほとんど行な
われていなかったｗ−ＢＣＮ粉末を、それも結晶粒径で
２０−以上の粗粒の形で製造することができ、しかも製
造されたｗ −Ｂ ＣＮ粉末はきわめて硬質で、かつ欠
は発生のないものなので、例えば砥石の硬質粒子などと
して適用した場合にすぐれた性能を発揮するようになる
など工業上有用な効果がもたらされるのである。As mentioned above, according to the method of the present invention, w-BCN powder, which has not received any attention until now and has hardly been manufactured on an industrial scale, can be made into a powder with a crystal grain size of 20 or more. Moreover, the produced w-B CN powder is extremely hard and has no defects, so it has excellent performance when used as hard particles in grinding wheels, etc. This brings about industrially useful effects such as improved performance.
Claims (2)
Ｃ：２〜２０％、Ｎ：４０〜４９％、 Ｂ：残り（ただし４０〜４９％） からなり、かつ２０μｍ以上の結晶粒径を有することを
特徴とするウルツアイト型炭窒化ほう素粉末。(1) The proportions of the constituent elements B, C, and N are in atomic %,
A wurtzite-type boron carbonitride powder comprising: C: 2 to 20%, N: 40 to 49%, and B: the remainder (40 to 49%), and having a crystal grain size of 20 μm or more.
用い、これら原料粉末を、重量％で、 炭素粉末：２〜３０％、 窒化ほう素粉末：残り、 の割合に配合し、混合した後、通常の高温高圧装置にて
、 温度：３０００℃以上、圧力：１万気圧以上、の条件で
加熱して、２０μｍ以上の結晶粒径を有する六方晶型炭
窒化ほう素粉末を形成し、 ついで、この六方晶型炭窒化ほう素粉末に、１０万気圧
以上の圧力で加圧処理を施して、ウルツアイト型炭窒化
ほう素粉末に変態せしめること、を特徴とするウルツア
イト型炭窒化ほう素粉末の製造法。(2) Using boron nitride powder and carbon powder as raw material powders, these raw material powders are blended and mixed in the following proportions by weight: carbon powder: 2 to 30%, boron nitride powder: the remainder, Heating in a normal high-temperature, high-pressure device at a temperature of 3,000°C or higher and a pressure of 10,000 atmospheres or higher to form hexagonal boron carbonitride powder having a crystal grain size of 20 μm or higher; Production of wurtzite boron carbonitride powder, which is characterized in that this hexagonal boron carbonitride powder is transformed into wurtzite boron carbonitride powder by subjecting the hexagonal boron carbonitride powder to pressure treatment at a pressure of 100,000 atmospheres or more. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2289831A JP2949827B2 (en) | 1990-10-26 | 1990-10-26 | Wurtzite-type boron carbonitride powder and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2289831A JP2949827B2 (en) | 1990-10-26 | 1990-10-26 | Wurtzite-type boron carbonitride powder and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04161240A true JPH04161240A (en) | 1992-06-04 |
| JP2949827B2 JP2949827B2 (en) | 1999-09-20 |
Family
ID=17748337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2289831A Expired - Fee Related JP2949827B2 (en) | 1990-10-26 | 1990-10-26 | Wurtzite-type boron carbonitride powder and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2949827B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732726A (en) * | 2016-12-23 | 2017-05-31 | 阜阳师范学院 | A kind of photochemical catalyst CNB BA and preparation method thereof |
| CN107117589A (en) * | 2017-05-25 | 2017-09-01 | 华侨大学 | A kind of high specific capacitance (BC) xNyOz materials and its synthetic method |
| CN110721658A (en) * | 2019-10-15 | 2020-01-24 | 江苏索普（集团）有限公司 | Preparation method and application of hexagonal boron nitride-graphite phase carbon nitride intercalation composite material |
-
1990
- 1990-10-26 JP JP2289831A patent/JP2949827B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732726A (en) * | 2016-12-23 | 2017-05-31 | 阜阳师范学院 | A kind of photochemical catalyst CNB BA and preparation method thereof |
| CN106732726B (en) * | 2016-12-23 | 2019-08-02 | 阜阳师范学院 | A kind of photochemical catalyst CNB-BA and preparation method thereof |
| CN107117589A (en) * | 2017-05-25 | 2017-09-01 | 华侨大学 | A kind of high specific capacitance (BC) xNyOz materials and its synthetic method |
| CN107117589B (en) * | 2017-05-25 | 2019-03-12 | 华侨大学 | A kind of high specific capacitance (BC) xNyOz material and its synthetic method |
| CN110721658A (en) * | 2019-10-15 | 2020-01-24 | 江苏索普（集团）有限公司 | Preparation method and application of hexagonal boron nitride-graphite phase carbon nitride intercalation composite material |
| CN110721658B (en) * | 2019-10-15 | 2022-06-10 | 江苏索普（集团）有限公司 | Preparation method and application of hexagonal boron nitride-graphite phase carbon nitride intercalation composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2949827B2 (en) | 1999-09-20 |
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