JPH02133399A - Method for polishing single crystal - Google Patents
Method for polishing single crystalInfo
- Publication number
- JPH02133399A JPH02133399A JP63285121A JP28512188A JPH02133399A JP H02133399 A JPH02133399 A JP H02133399A JP 63285121 A JP63285121 A JP 63285121A JP 28512188 A JP28512188 A JP 28512188A JP H02133399 A JPH02133399 A JP H02133399A
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- beta
- polished
- single crystal
- glycerin
- 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.)
- Pending
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 24
- 239000013078 crystal Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 34
- 235000011187 glycerol Nutrition 0.000 claims description 14
- 239000000314 lubricant Substances 0.000 claims description 12
- 239000003082 abrasive agent Substances 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229910052788 barium Inorganic materials 0.000 description 3
- XBJJRSFLZVLCSE-UHFFFAOYSA-N barium(2+);diborate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]B([O-])[O-].[O-]B([O-])[O-] XBJJRSFLZVLCSE-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004031 devitrification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、非線形光学材料のベータバリウムボレイト（
１３−ＢａＢ２Ｏ４）単結晶を鏡面研磨するための研磨
方法に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to nonlinear optical material beta-barium borate (
13-BaB2O4) It relates to a polishing method for mirror polishing a single crystal.
（従来の技術）
従来、光学用単結晶の鏡面研磨は、まず結晶切断面をカ
ーボランダムや、アランダムの様な研磨剤を用いて行っ
ていた。最初は６００メソシユのような粗い研磨剤を用
い、徐々に細かいものに切り替えて研磨を行い、４００
０〜８０００メツシユまで磨いた後、ダイヤモンド微粉
を含むペーストを用いて研磨し、結晶の表面を鏡面に仕
上げていた。通常研磨剤の潤滑液としては、水を用いて
いた。しかし、ベータバリウムボレイト（１３−ＢａＢ
２Ｏ４）は最近発見された非線形光学材料であるため、
単結晶を鏡面研磨するための研磨剤、潤滑液、作業方法
が見つかっていなかった。(Prior Art) Conventionally, mirror polishing of optical single crystals has been carried out by first polishing the cut surface of the crystal using an abrasive such as carborundum or alundum. At first, use a coarse abrasive such as 600 Mesoyu, gradually switch to a finer one, and polish with 400 Mesoyu.
After polishing to a mesh size of 0 to 8,000, the crystal surface was polished to a mirror finish using a paste containing fine diamond powder. Water has usually been used as a lubricating fluid for abrasives. However, beta barium borate (13-BaB
2O4) is a recently discovered nonlinear optical material, so
No abrasives, lubricants, or working methods had been found to mirror-polish single crystals.
（発明が解決しようとする問題点）
従来、光学用単結晶の鏡面研磨には、通常の研磨剤とし
てダイヤモンドペースト、潤滑液として水か、アルコー
ル、グリセリン、水の混合液、例えば各々の比率を３：
１：１で混合した溶液等を使用して行うことができた。(Problems to be Solved by the Invention) Conventionally, mirror polishing of optical single crystals has been carried out using diamond paste as a common polishing agent and water or a mixture of alcohol, glycerin, and water as a lubricating liquid, for example, using a mixture of alcohol, glycerin, and water in different ratios. 3:
This could be done using a solution mixed at a ratio of 1:1.
しかし、ベータバリウムボレート（Ｂ−ＢａＢ２Ｏ４）
をこの方法により研磨したところ、研磨面が白く濁って
しまった。つまり、結晶の表面が失透してしまい、鏡面
研磨することがむずかしかった。本発明は潤滑液を変え
ることによりこの問題を解決しようとするものである。However, beta barium borate (B-BaB2O4)
When polished using this method, the polished surface became white and cloudy. In other words, the surface of the crystal becomes devitrified, making it difficult to mirror polish it. The present invention attempts to solve this problem by changing the lubricant.
（問題を解決するための手段）
本発明はベータバリウムボレイト（１３−ＢａＢ２Ｏ４
）単結晶を鏡面研磨する際、潤滑液にグリセリンだけを
使用することにより、研磨面の白濁の問題を解決したも
ので、この方法によれば従来の研磨剤によってこの結晶
を鏡面研磨することが可能である。(Means for solving the problem) The present invention provides beta-barium borate (13-BaB2O4
) When mirror polishing a single crystal, the problem of cloudiness on the polished surface is solved by using only glycerin as the lubricant. According to this method, it is not possible to mirror polish the crystal using conventional polishing agents. It is possible.
（作用）
ベータバリウムポレイト（１３−ＢａＢ２ＯＪは少々で
あるが吸湿性を持つ。研磨の際に研磨面が白く濁ってし
まう原因として、水やアルコールのもつＯＨ基と結晶が
反応していることが考えられる。(Action) Beta-barium porate (13-BaB2OJ has a small amount of hygroscopicity.The reason why the polished surface becomes white and cloudy during polishing is that the crystals react with the OH groups of water and alcohol. is possible.
例えば、育成したベータバリウムボレイト（１３−Ｂａ
Ｂ２Ｏ４）の表面が透明な結晶の破片（約３ Ｘ ３
Ｘ １ｍｍ）を、水、アルコール、にそれぞれ浸し、時
間の経過とともに表面の状態を観察したところ、水は１
０分程度、アルコールは２Ｏ分程度で結晶の表面が完全
に失透し、白く濁ってしまった。ところが、グリセリン
を用いたところ、１時間３０分経過しても失透してこな
かった。グリセリンはＯＨ基を持っているが、水、アル
コールよりもＯＨ基とＯＨ基以外の分子との間の分極が
小さくて反応性に乏しいため、結晶表面が浸されること
がないと考えられる。For example, grown beta-barium borate (13-Ba
B2O4) crystal fragments with transparent surfaces (approximately 3 x 3
1 mm) was immersed in water and alcohol, and the surface condition was observed over time.
After about 0 minutes and about 20 minutes of alcohol, the surface of the crystal completely devitrified and became cloudy white. However, when glycerin was used, devitrification did not occur even after 1 hour and 30 minutes. Although glycerin has an OH group, the polarization between the OH group and molecules other than the OH group is smaller than that of water or alcohol, and the reactivity is poor, so it is thought that the crystal surface will not be immersed.
以上のことにより、グリセリンはベータバリウムポルイ
） （ｐ−ＢａＢ２Ｏ４）の研磨剤の潤滑液に使用して
も、研磨面を白く濁らせることはない。As a result of the above, even when glycerin is used as a lubricant for beta-barium poly(p-BaB2O4) polishing agent, it does not make the polished surface cloudy.
（実施例）
育成したベータバリウムボレイト（Ｉ３−ＢａＢ２Ｏ４
）単結晶の、Ｃ軸に垂直にへき開した破片（８Ｘ ８
Ｘ ３ｍｍ）を、まず６００メツシユのアルミナ匂ト磨
剤で潤滑液にグリセリンを用いて両面を研２し、８ Ｘ
８ Ｘ １ｍｍ１呈度の試料にした。超音波洗浄器で
グリセリンにより研磨剤を洗浄した後、同じ様に１２Ｏ
０メツシユ、３０００メツシユ、８０００メツシユのア
ルミナ研磨剤で研磨した。最後にｌｐｍのダイヤモンド
微粉を含むペーストで潤滑液にグリセリンを用いて研磨
した。このように潤滑液にグリセリンだけを用いて、ア
ルミナとダイヤモンドペーストの研磨剤により試料を研
磨したところ、研磨面は白く濁らずに透明なものが得ら
れた。(Example) Grown beta barium borate (I3-BaB2O4
) A fragment of a single crystal cleaved perpendicular to the C axis (8X 8
First, polish both sides of a 600-mesh alumina scented abrasive using glycerin as a lubricant.
A sample of 8 x 1 mm and 1 size was prepared. After cleaning the polishing agent with glycerin in an ultrasonic cleaner, 12O
Polished with 0 mesh, 3000 mesh, and 8000 mesh alumina abrasive. Finally, it was polished with a paste containing lpm of diamond fine powder using glycerin as a lubricant. When a sample was polished with an abrasive of alumina and diamond paste using only glycerin as the lubricant, the polished surface was white and transparent without becoming cloudy.
一方潤滑液に水を用いて、同じ研磨剤により試料を研磨
したところ、研磨面は透明にならなかった。実体顕微鏡
で観察したところ研磨面が白く濁っていることが解った
。次に潤滑液に水を用いずに、アルコール、グリセリン
、水の比率を３：１：１で混合した液だけを用いて試料
を研、若してみたが、研磨面の透明なものは得られなか
った。On the other hand, when a sample was polished with the same polishing agent using water as the lubricant, the polished surface did not become transparent. When observed with a stereomicroscope, it was found that the polished surface was white and cloudy. Next, I tried polishing the sample using only a mixture of alcohol, glycerin, and water in the ratio of 3:1:1 without using water as a lubricant, but I could not obtain a transparent polished surface. I couldn't.
以上の実験例から明らかなように、ベータバリウムボレ
ート（Ｂ−ＢａＢ２Ｏ４）単結晶は、潤滑液にグリセリ
ンだけを用いることにより、従来の研磨剤によっても鏡
面研磨できることが解った。As is clear from the above experimental examples, it has been found that beta-barium borate (B-BaB2O4) single crystals can be mirror-polished with conventional polishing agents by using only glycerin as the lubricant.
（発明の効果）
以上説明したように、本発明は、ベータバリウムボレイ
） （１３−ＢａＢ２Ｏ４）単結晶を鏡面研磨する際に
、研磨剤の潤滑液としてグリセリンだけを使用すること
により、従来の研磨剤によっても、研磨面を失透するこ
となく鏡面研磨できる効果がある。(Effects of the Invention) As explained above, the present invention enables mirror polishing of beta-barium boley (13-BaB2O4) single crystal by using only glycerin as a lubricant for the polishing agent. The polishing agent also has the effect of mirror polishing without devitrification of the polished surface.
Claims (1)
晶を鏡面研磨する際、研磨剤の潤滑液としてグリセリン
だけを用いることを特徴とする単結晶の研磨方法。A method for polishing a single crystal of beta-barium borate (B-BaB_2O_4), characterized in that only glycerin is used as a lubricant for polishing when polishing a single crystal to a mirror surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63285121A JPH02133399A (en) | 1988-11-11 | 1988-11-11 | Method for polishing single crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63285121A JPH02133399A (en) | 1988-11-11 | 1988-11-11 | Method for polishing single crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133399A true JPH02133399A (en) | 1990-05-22 |
Family
ID=17687390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63285121A Pending JPH02133399A (en) | 1988-11-11 | 1988-11-11 | Method for polishing single crystal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476411A (en) * | 1993-07-16 | 1995-12-19 | Henkel Corporation | Aqueous composition for wet sanding of dried paint, plastics, and the like |
| US6146251A (en) * | 1998-02-06 | 2000-11-14 | Sony Corporation | Polishing method, method of manufacturing an optical device, and a liquid suspension used for polishing |
-
1988
- 1988-11-11 JP JP63285121A patent/JPH02133399A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476411A (en) * | 1993-07-16 | 1995-12-19 | Henkel Corporation | Aqueous composition for wet sanding of dried paint, plastics, and the like |
| US6146251A (en) * | 1998-02-06 | 2000-11-14 | Sony Corporation | Polishing method, method of manufacturing an optical device, and a liquid suspension used for polishing |
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