JPH0818818B2 - Y-B compound and method for producing the same - Google Patents
Y-B compound and method for producing the sameInfo
- Publication number
- JPH0818818B2 JPH0818818B2 JP20451293A JP20451293A JPH0818818B2 JP H0818818 B2 JPH0818818 B2 JP H0818818B2 JP 20451293 A JP20451293 A JP 20451293A JP 20451293 A JP20451293 A JP 20451293A JP H0818818 B2 JPH0818818 B2 JP H0818818B2
- Authority
- JP
- Japan
- Prior art keywords
- boron
- compound
- yttrium
- ratio
- producing
- 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.)
- Expired - Lifetime
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Ceramic Products (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、Ｙ−Ｂ系化合物とそ
の製造方法に関するものである。さらに詳しくは、この
発明は、熱電素子材料、分光素子材料等に利用可能な新
しいタイプのＹ−Ｂ系化合物とその製造方法に関するも
のである。FIELD OF THE INVENTION The present invention relates to a YB compound and a method for producing the same. More specifically, the present invention relates to a new type YB compound that can be used as a thermoelectric element material, a spectroscopic element material, and the like, and a method for producing the same.
【０００２】[0002]
【従来の技術とその課題】従来より、機械材料や電気電
子材料などについては、高機能を有する新規材料の研究
開発が盛んに行なわれており、酸化物系材料の他、非酸
化物系の材料の探索も進められてきている。この非酸化
物系材料の一つとして、たとえばＹ−Ｂ系の化合物が知
られており、このＹ−Ｂ系化合物としてはＹＢ12および
ＹＢ66がこれまでに提供されている。2. Description of the Related Art Conventionally, as for mechanical materials and electric / electronic materials, research and development of new materials having high functions have been actively conducted. Materials are being searched for. As one of the non-oxide materials, for example, a Y-B compound is known, and YB 12 and YB 66 have been provided as the Y-B compound.
【０００３】しかしながら、機械材料や電気電子材料な
どについては、さらに良好な性能を有する材料の開発が
望まれており、これまでにはない全くの新しいタイプの
材料の創製と、それを再現性よく、しかも簡便かつ容易
に製造することのできる製造技術の確立が期待されてい
る状況にある。この発明は、以上の通りの事情に鑑みて
なされたものであり、従来知られていない全く新しい組
成を有し、熱電素子材料、分光素子材料等に利用可能な
Ｙ−Ｂ系化合物とその製造方法を提供することを目的と
している。However, with regard to mechanical materials, electric / electronic materials, etc., it is desired to develop materials having better performance, and it is necessary to create a completely new type of material that has never existed before and to reproduce it with good reproducibility. Moreover, there is a demand for establishment of a manufacturing technique that enables simple and easy manufacturing. The present invention has been made in view of the circumstances as described above, has a completely new composition that has not hitherto been known, and can be used as a thermoelectric element material, a spectroscopic element material, and the like, and a production thereof. It is intended to provide a way.
【０００４】[0004]
【課題を解決するための手段】この発明は上記の課題を
解決するものとして、一般式ＹＢ48+X（−８＜Ｘ＜８）
で示されてなることを特徴とするＹ−Ｂ系化合物を提供
する。またこの発明は、イットリュウムに対するホウ素
の比が４８＋Ｘ（−８＜Ｘ＜８）で、かつ酸素とホウ素
の比が１となるように、イットリュウム酸化物にホウ素
を混合し、その混合物を真空下または不活性ガス下で温
度1400℃以上1750℃以下に加熱することを特徴とする一
般式ＹＢ48+X（−８＜Ｘ＜８）で示されるＹ−Ｂ系化合
物の製造方法を提供するものでもある。In order to solve the above problems, the present invention provides a general formula YB 48 + X (-8 <X <8).
The present invention provides a Y-B compound. The present invention also mixes yttrium oxide with boron such that the ratio of boron to yttrium is 48 + X (-8 <X <8) and the ratio of oxygen to boron is 1, and the mixture is vacuumized. A method for producing a YB-based compound represented by the general formula YB 48 + X (-8 <X <8), which comprises heating at a temperature of 1400 ° C. or higher and 1750 ° C. or lower under an inert gas or under an inert gas. It is also a thing.
【０００５】さらにまたこの発明は、イットリュウムに
対するホウ素の比が４８＋Ｘ（−８＜Ｘ＜８）となるよ
うに、イットリュウム低ホウ化物にホウ素を混合し、そ
の混合物を真空下または不活性ガス下で温度1400℃以上
1750℃以下に加熱することを特徴とする一般式ＹＢ48+X
（−８＜Ｘ＜８）で示されるＹ−Ｂ系化合物の製造方法
をも提供する。Furthermore, the present invention mixes boron with yttrium low boride so that the ratio of boron to yttrium is 48 + X (-8 <X <8), and the mixture is mixed under vacuum or with an inert gas. Temperature below 1400 ℃
General formula YB 48 + X characterized by heating below 1750 ° C
Also provided is a method for producing a YB compound represented by (-8 <X <8).
【０００６】[0006]
【作用】この発明のＹ−Ｂ系化合物は、従来から一般的
に知られているＹＢ12およびＹＢ66のＹ−Ｂ系の化合物
の中間の組成を有している。この化合物の安定存在組成
領域は、その組成を一般式で示すと、ＹＢ48+X（−８＜
Ｘ＜８）であり、格子定数ａ＝1.663nm ，ｂ＝1.762nm
，ｃ＝0.9480nmを持つ斜方晶系の結晶構造を有しても
いる。その代表組成の化合物は、Ｘが０のＹＢ48であ
る。このＹＢ48で示される化合物の面指数hk1 、面間隔
ｄ(nm)および粉末Ｘ線回折の相対強度Ｉ／Ｉl（％) は
以下の表１および表２に示す通りである。なお、表１お
よび表２中のdcalcは計算値を、また、ｄobs は観測値
を示している。The YB compound of the present invention has an intermediate composition between the YB 12 and YB 66 YB compounds which have been generally known. The composition region of stable existence of this compound is YB 48 + X (-8 <
X <8), lattice constants a = 1.663 nm, b = 1.762 nm
, C = 0.9480 nm with an orthorhombic crystal structure. The compound having the representative composition is YB 48 in which X is 0. The face index hk1, face spacing d (nm), and relative intensity I / I l (%) of powder X-ray diffraction of the compound represented by YB 48 are as shown in Tables 1 and 2 below. In Tables 1 and 2, d calc is a calculated value and d obs is an observed value.
【０００７】[0007]
【表１】 [Table 1]
【０００８】[0008]
【表２】 [Table 2]
【０００９】また、この発明の一般式ＹＢ48+X（−８＜
Ｘ＜８）で示されるＹ−Ｂ系化合物は半導体であり、高
いゼーベック係数を持つ。このため、熱電素子材料とし
ての利用が期待される。また、上記の通り、格子定数が
大きいことから、軟Ｘ線分光素子材料としてきわめて有
用である。この一般式ＹＢ48+Xで示されるＹ−Ｂ系化合
物を製造するための方法としては、前記の２種類の方法
があるが、これらいずれの方法においても、イットリュ
ウムに対するホウ素の比を４０より大きく、しかも５６
より小さくする必要がある。イットリュウムに対するホ
ウ素の比が４０より小さいと、反応生成物中に低ホウ化
物であるＹＢ12などが不純物として混在してしまう。一
方、イットリュウムに対するホウ素の比が５６を超える
場合には、反応生成物中にＹＢ66が不純物として混在す
るようになる。このため、イットリュウムに対するホウ
素の比は、４８＋ｘ（−８＜Ｘ＜８）とする。The general formula YB 48 + X (-8 <
The YB compound represented by X <8) is a semiconductor and has a high Seebeck coefficient. Therefore, it is expected to be used as a thermoelectric element material. Further, as described above, since it has a large lattice constant, it is extremely useful as a soft X-ray spectroscopic element material. As a method for producing the Y—B compound represented by the general formula YB 48 + X , there are the above-mentioned two kinds of methods, and in any of these methods, the ratio of boron to yttrium is 40 or more. Big and 56
Need to be smaller. When the ratio of boron to yttrium is less than 40, low-boride YB 12 and the like are mixed as impurities in the reaction product. On the other hand, when the ratio of boron to yttrium exceeds 56, YB 66 is mixed as an impurity in the reaction product. Therefore, the ratio of boron to yttrium is 48 + x (-8 <X <8).
【００１０】また、イットリュウム酸化物またはイット
リュウムホウ化物とホウ素とを上記の通りの所定割合に
混合した混合物を加熱する際には、1400℃以上1750℃以
下の温度で、かつ真空下または不活性ガス下で行なうこ
とが必要である。1400℃より低いと、反応速度が遅くな
り、事実上、Ｙ−Ｂ系化合物の製造が困難となる。一
方、1750℃より高いと、ＹＢ48+Xの相が分解を始め、Ｙ
Ｂ12，ＹＢ66等の他のＹ−Ｂ系化合物が反応生成物中に
不純物として混在することになる。Further, when heating a mixture of yttrium oxide or yttrium boride and boron in a predetermined ratio as described above, at a temperature of 1400 ° C. or higher and 1750 ° C. or lower and under vacuum or without vacuum. It is necessary to carry out under an active gas. If it is lower than 1400 ° C, the reaction rate becomes slow, and it becomes difficult to produce the YB compound in fact. On the other hand, if the temperature is higher than 1750 ℃, the YB 48 + X phase begins to decompose
Other Y-B type compounds such as B 12 and YB 66 are mixed as impurities in the reaction product.
【００１１】以下実施例を示し、さらにこの発明につい
て詳しく説明する。The present invention will be described in detail below with reference to examples.
【００１２】[0012]
【実施例】Ｙ2 Ｏ3 とＢを、Ｙに対するＢの比が５０
で、かつＯに対するＢの比が１となる割合で混合し、こ
れを加圧成形したものを真空中、1700℃で１時間加熱
し、ＹＢ48+X（Ｘ＝２）を合成した。化学分析による測
定では、［Ｂ］／［Ｙ］＝48.9となり、ＹＢ48+X（Ｘ＝
0.9 ）のほぼ所望の組成と近似する新たなＹ−Ｂ系化合
物を得たことが確認された。EXAMPLE Y 2 O 3 and B are mixed in a ratio of B to Y of 50.
And mixed at a ratio of B to O of 1 and press-molded, which was heated at 1700 ° C. for 1 hour in vacuum to synthesize YB 48 + X (X = 2). According to the measurement by chemical analysis, [B] / [Y] = 48.9, and YB 48 + X (X =
It was confirmed that a new YB compound having a composition close to the desired composition of 0.9) was obtained.
【００１３】そして、粉末Ｘ線回折、透過電子線回折お
よび光学顕微鏡観察により、得られた化合物中にＹＢ12
およびＹＢ66の相が混在していないことが確認された。
回折パターンは、前記の表１に示したａ＝1.663nm ，ｂ
＝1.762nm ，ｃ＝0.9480nmの斜方晶系で指数付けするこ
とができた。もちろんこの発明は、以上の例によって限
定されることはない。細部については様々な態様が可能
であることは言うまでもない。Then, YB 12 was added to the obtained compound by powder X-ray diffraction, transmission electron diffraction and optical microscope observation.
It was confirmed that the phases of YB 66 and YB 66 were not mixed.
The diffraction pattern is a = 1.663 nm, b shown in Table 1 above.
It was possible to perform indexing in the orthorhombic system of = 1.762 nm and c = 0.9480 nm. Of course, the present invention is not limited by the above examples. It goes without saying that various details are possible.
【００１４】[0014]
【発明の効果】以上詳しく説明した通り、この発明によ
って、いままでには存在しなかった、全く新しいタイプ
の、一般式ＹＢ48+X（−８＜Ｘ＜８）で示されるＹ−Ｂ
系化合物が提供される。熱電素子材料、分光素子材料等
としての応用展開がきわめて有望視される。As described above in detail, according to the present invention, a completely new type of Y-B represented by the general formula YB 48 + X (-8 <X <8), which has never existed until now, can be obtained.
System compounds are provided. The development of applications as thermoelectric element materials, spectroscopic element materials, etc. is very promising.
Claims (3)
れてなることを特徴とするＹ−Ｂ系化合物。1. A YB-based compound represented by the general formula YB 48 + X (-8 <X <8).
８＋X （−８＜Ｘ＜８）で、かつ酸素とホウ素の比が１
となるように、イットリュウム酸化物にホウ素を混合
し、その混合物を真空下または不活性ガス下で温度1400
℃以上1750℃以下に加熱することを特徴とする一般式Ｙ
Ｂ48+X（−８＜Ｘ＜８）で示されるＹ−Ｂ系化合物の製
造方法。2. The ratio of boron to yttrium is 4
8 + X (-8 <X <8) and the ratio of oxygen to boron is 1
So that yttrium oxide is mixed with boron, and the mixture is heated at a temperature of 1400 under vacuum or an inert gas.
General formula Y characterized by heating above ℃ to 1750 ℃
A method for producing a Y-B compound represented by B 48 + X (-8 <X <8).
８＋Ｘ（−８＜Ｘ＜８）となるように、イットリュウム
低ホウ化物にホウ素を混合し、その化合物を真空下また
は不活性ガス下で温度1400℃以上1750℃以下に加熱する
ことを特徴とする一般式ＹＢ48+X（−８＜Ｘ＜８）で示
されるＹ−Ｂ系化合物の製造方法。3. The ratio of boron to yttrium is 4
It is characterized in that yttrium low boride is mixed with boron so that 8 + X (−8 <X <8), and the compound is heated to a temperature of 1400 ° C. or more and 1750 ° C. or less under vacuum or an inert gas. The method for producing a YB-based compound represented by the general formula YB 48 + X (-8 <X <8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20451293A JPH0818818B2 (en) | 1993-07-27 | 1993-07-27 | Y-B compound and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20451293A JPH0818818B2 (en) | 1993-07-27 | 1993-07-27 | Y-B compound and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0733429A JPH0733429A (en) | 1995-02-03 |
| JPH0818818B2 true JPH0818818B2 (en) | 1996-02-28 |
Family
ID=16491761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20451293A Expired - Lifetime JPH0818818B2 (en) | 1993-07-27 | 1993-07-27 | Y-B compound and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0818818B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379832C (en) | 1998-08-13 | 2008-04-09 | 日立化成工业株式会社 | Adhesive for circuit components connection circuit board and producing method thereof |
-
1993
- 1993-07-27 JP JP20451293A patent/JPH0818818B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0733429A (en) | 1995-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |