JPS63303301A - Mirror made of carbon fiber reinforced carbon - Google Patents
Mirror made of carbon fiber reinforced carbonInfo
- Publication number
- JPS63303301A JPS63303301A JP13934087A JP13934087A JPS63303301A JP S63303301 A JPS63303301 A JP S63303301A JP 13934087 A JP13934087 A JP 13934087A JP 13934087 A JP13934087 A JP 13934087A JP S63303301 A JPS63303301 A JP S63303301A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- mirror
- carbon fiber
- glass
- 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.)
- Pending
Links
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 93
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 35
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000011247 coating layer Substances 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229920000297 Rayon Polymers 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 3
- 239000002964 rayon Substances 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 20
- 239000005354 aluminosilicate glass Substances 0.000 claims description 3
- 239000005368 silicate glass Substances 0.000 claims description 3
- GNKTZDSRQHMHLZ-UHFFFAOYSA-N [Si].[Si].[Si].[Ti].[Ti].[Ti].[Ti].[Ti] Chemical compound [Si].[Si].[Si].[Ti].[Ti].[Ti].[Ti].[Ti] GNKTZDSRQHMHLZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 229910002065 alloy metal Inorganic materials 0.000 claims 1
- 239000005388 borosilicate glass Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 150000002739 metals Chemical class 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- HLXRWTJXGMHOFN-XJSNKYLASA-N Verbenalin Chemical compound O([C@@H]1OC=C([C@H]2C(=O)C[C@H](C)[C@H]21)C(=O)OC)[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O HLXRWTJXGMHOFN-XJSNKYLASA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- HLXRWTJXGMHOFN-UHFFFAOYSA-N Verbenalin Natural products C12C(C)CC(=O)C2C(C(=O)OC)=COC1OC1OC(CO)C(O)C(O)C1O HLXRWTJXGMHOFN-UHFFFAOYSA-N 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000005385 borate glass Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
この発明は炭素繊維強化炭素製ミラーに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) This invention relates to a mirror made of carbon fiber reinforced carbon.
（従来の技術） 従来のミラーとしては、カラス、スデンレス。(Conventional technology) Conventional mirrors include crow and sudenres.
銅アルミニウム等を用いたものか一般的てあフだ。カラ
スに金を陸着したりモリブテンを蒸着したミラーは、表
面粗さの極めて小さい、光反射率の高い鏡面を有してい
る。また、スデンレス。It's a common one that uses copper aluminum, etc. Mirrors made by depositing gold on glass or vapor-depositing molybdenum have mirror surfaces with extremely low surface roughness and high light reflectance. Also, Sudenres.
銅、アルミニウム等の金属を研磨して鏡面としたミラー
は、ガラスミラーはどの鏡ｍはｉｊＩられないか、熱伝
導性に優れており、比較曲部ｒＰ−な工程でＩＦらねる
ことから広くＴ業師に用いられている（特開昭６０−８
９５４１号公報参照）。また、繊維強化プラスチックス
を基板とし、その表面に金属被覆を設けたものも、軽１
１であるために］二業的に用いられている（特開昭６１
−２７５０４−３公報参照）。Mirrors made from polished metals such as copper and aluminum to a mirror surface are widely used because glass mirrors have excellent thermal conductivity and are used in IF processing in a comparative curved process. Used by T-businessmen (Japanese Unexamined Patent Publication No. 60-8
(See Publication No. 9541). In addition, products with a fiber-reinforced plastic substrate and a metal coating on the surface are also available.
1] is used in a secondary industry (Japanese Patent Application Laid-open No. 1983
-27504-3).
ところで、最近では、レーザの反射鏡や科学衛星等に搭
載するミラーとして、従来のミラーに増してより高Ｍｆ
＋’ｅなものか要求されている。これらの用途に用いら
れるミラーは、軽量であることはもちろん、ミラーとし
ての弾＋ｆ：率、強度、破壊靭性なとの機械的特Ｈに優
れるとともに、外部温度の変化に対しても寸法安定性か
良いというような熱的時ｆｌｉに優れていることが必要
である。By the way, recently, mirrors with higher Mf than conventional mirrors have been used as reflectors for lasers and mirrors mounted on scientific satellites.
+'e is required. Mirrors used for these applications are not only lightweight, but also have excellent mechanical properties such as bullet rate, strength, and fracture toughness, as well as dimensional stability against changes in external temperature. It is necessary to have excellent thermal resistance such as heat resistance.
このようなミラーとしては、繊維ガラスセラミック複合
材とガラスミラー表面材とからなる積層構造ミラーブラ
ンクがすてに提案されている（特開昭６１−１１２４：
間公報参照）。As such a mirror, a laminated structure mirror blank consisting of a fiber glass ceramic composite material and a glass mirror surface material has been proposed (Japanese Patent Application Laid-open No. 1124-1989:
(Refer to the inter-annual bulletin).
（発明か解決しようとする間■点）
ところか、従来のミラーは、ガラスミラーの場合、軽ｈ
↓、耐熱性に優れてはいるものの弾性率か小さく、また
、破壊靭性が小さいために割れやすく、信ｆｌ＋Ｉ［に
欠けるという欠点を有している。(■ point while trying to invent or solve) However, if the conventional mirror is a glass mirror, it is light
↓Although it has excellent heat resistance, it has a small elastic modulus and has a low fracture toughness, so it is easily broken and has the disadvantage of lacking reliability fl+I[.
金属を用いたミラーは、ｔ７ｊいためにミラーを可動部
分に用いることか難しく、また、科学衛星に搭載するも
のては重いために打にげ費用がかさむという問題があっ
た。さらに、熱肛張率が大きく熱に対１−る中法安定性
に欠けるという避は難い欠点を有している。Mirrors made of metal are difficult to use as movable parts due to their t7j thickness, and there are also problems in that they are heavy and expensive to carry on board scientific satellites. Furthermore, it has the unavoidable drawback that it has a large thermal extensibility and lacks stability against heat.
繊維強化プラスチックスな基板とするミラーは、軽量で
あるという大きな利点を有するが、ミラー表面の硬さか
不１＝分てあったり、また、ミラーに要求される表面結
反を得ることか難しい欠点があった。さらに、熱的特性
に関しては、耐熱性に劣るとともに熱伝導率が小さいと
いう欠点があった。Mirrors with fiber-reinforced plastic substrates have the great advantage of being lightweight, but they also have the disadvantage that the hardness of the mirror surface is inconsistent, and it is difficult to obtain the surface stiffness required for mirrors. was there. Furthermore, with regard to thermal properties, it has the drawbacks of poor heat resistance and low thermal conductivity.
ｙＡ維カラスセラミック複合材とガラスミラー表面材か
らなる間層構造ミラーブランクは、上記欠点を改良しよ
うとするものであるか、なお厳しい＋１能が要求される
用途には、より高性能、軽量なミラーが要求されている
。The interlayer structure mirror blank made of yA fiberglass ceramic composite material and glass mirror surface material is intended to improve the above drawbacks, or is suitable for applications that still require strict +1 performance, with higher performance and lighter weight. Mirror is requested.
この発明は、ト述した従来のミラーの欠点を解消するた
めになされたもので、軽［１１で、弾性率、強度、破壊
靭性等の機械的特性に優れ、かつ、低熱膨張、高熱伝導
性等の熱的特性に優れるとともに、耐熱＋１を兼ね備え
た炭素繊維強化炭素製ミラーを提供することを目的とす
る。This invention was made to eliminate the drawbacks of the conventional mirrors mentioned above.It is lightweight, has excellent mechanical properties such as elastic modulus, strength, and fracture toughness, and has low thermal expansion and high thermal conductivity The purpose of the present invention is to provide a carbon fiber-reinforced carbon mirror that has excellent thermal properties such as, and has +1 heat resistance.
（問題点を解決するための手段）
この発明に係る炭素繊維強化炭素製ミラーは、軽！ｔ１
で”５１１性率、強度、破壊靭ＰＬに優れるとともに、
低熱膨張かつ高熱伝導の炭素ｉａ維強化炭素を基板とし
て用い、その表面（月面または両面）にガラスミラー表
面材料を結合させて、これに十分な表面平滑性を与える
とともに、ガラスミラー表面材料の表面に金属被覆層を
設けたものである。(Means for solving the problem) The carbon fiber reinforced carbon mirror according to the present invention is lightweight! t1
"511" has excellent properties such as PL, strength, and fracture toughness,
Carbon ia fiber reinforced carbon with low thermal expansion and high thermal conductivity is used as a substrate, and a glass mirror surface material is bonded to the surface (lunar surface or both surfaces) to give it sufficient surface smoothness and to improve the surface smoothness of the glass mirror surface material. A metal coating layer is provided on the surface.
第１図は、このように構成された炭素繊維強化炭素製ミ
ラーの代表例をｔＪ＜す縦断図である。１は炭素繊維強
化炭素の基板で、その片面にはガラスミラー表面材料２
か結合されている。３は、このガラスミラー表面材料２
の表面に設けられた金属被覆層である。FIG. 1 is a longitudinal sectional view of a representative example of a carbon fiber-reinforced carbon mirror constructed in this manner. 1 is a carbon fiber reinforced carbon substrate, on one side of which is a glass mirror surface material 2.
or combined. 3 is this glass mirror surface material 2
It is a metal coating layer provided on the surface of.
基板１を構成する炭素繊維強化炭素は、一般に、ＰＡＮ
系、ピッチ系、レーヨン系の炭素繊維のうち少なくとも
２種類を同時に炭素マトリックスと複合化させたもので
ある。この際、炭素繊維は連続状または織物状としたも
のが用いられる。炭素ｍ組節化炭素は、樹脂含浸炭化法
、ＣＶ Ｄ （Ｃｈｅｍｉｃａｌ Ｖａｐｏｒ Ｄｃｐ
ｏｓｉｌ、１ｏｎ）やＣＶＩ（Ｃｈｅｍｉｃａｌ Ｖａ
ｐｏｒ Ｉｎｆｉｌｔｒａｔ、１ｏｎ）法等の周知の方
法で製造されるものが用いられる。The carbon fiber reinforced carbon constituting the substrate 1 is generally PAN
At least two types of carbon fibers, pitch-based, pitch-based, and rayon-based, are simultaneously composited with a carbon matrix. At this time, the carbon fibers used are continuous or woven. Carbon m-group carbonization is produced by resin impregnation carbonization method, CV D (Chemical Vapor Dcp)
osil, 1on) and CVI (Chemical Va
A material manufactured by a well-known method such as the por infiltrat (1on) method is used.
炭素ｗａ維組節炭素中ての炭素繊維は、０”１０°のよ
うに一方向に配列されているものても支障ないか、炭素
繊維強化炭素の異方性を出来る限り少なくするために、
少なくと６２方向に配列されていることか好ましい。こ
の場合、炭素繊維の炭素マトリックス中で交互に配列さ
れていることか特に好ましく、例えば、基本的には炭素
ｍＭ＃は０°／９０°、０°／±４５°／９ｏ°及び０
°／±６０°からなる群より選ばれる−っの配向をとる
ように積層さねていることが特に好ましい。また、ニー
次元またはＥ次元状に織られた炭素織物を用いることも
炭素繊維強化炭素の異方性を解消するのにイＦ効てあり
、このような状態の繊維を用いた炭素繊維強化炭素の基
板も用いられる。The carbon fibers in the carbon wa fiber knot carbon may be arranged in one direction such as 0"10 degrees without any problem, or in order to reduce the anisotropy of the carbon fiber reinforced carbon as much as possible,
It is preferable that they are arranged in at least 62 directions. In this case, it is particularly preferred that the carbon fibers are arranged alternately in the carbon matrix, for example basically carbon mm# is 0°/90°, 0°/±45°/9o° and 0
It is particularly preferable that the layers are stacked so as to have an orientation selected from the group consisting of °/±60°. Additionally, using a carbon fabric woven in a knee-dimensional or E-dimensional shape is also effective in eliminating the anisotropy of carbon fiber-reinforced carbon, and carbon fiber-reinforced carbon using fibers in this state substrates may also be used.
ガラスミラー表面材料２の厚さは、最小３μｍから最大
は基板１の厚さの１１５以下に設定される。ガラスミラ
ー表面材料２の厚さが３μｍ以トでは炭素繊維強化炭素
の基板１トに出た炭素繊維の突起を完全に覆うことが不
可能となり、ガラスミラー表面材料２に霊水される１−
分な表面平滑刊を得ることか出来なくなり、また、その
厚さか基板１の厚さの１１５を越えると、ガラスミラー
表面材料２の熱膨づ長生、熱伝導率か炭素繊維強化炭素
製ミラーの特性に及ぼす影響が大きくなり、炭素繊維強
化炭素の持つ優れた熱的特性を利用しにくくなる。また
、炭素繊維強化炭素とガラスミラー表面材料の間に熱膨
張係数の差があるため、温度変化（−１５０℃〜３００
’Ｃ）の繰り返しによって基板１とガラスミラー表面
材料２との間で剥離を生しやずいのて、ガラスミラー表
面材料２の厚さは、３μｍから基板１の１１５の厚さの
範囲に設定される。The thickness of the glass mirror surface material 2 is set from a minimum of 3 μm to a maximum of 115 μm or less of the thickness of the substrate 1. If the thickness of the glass mirror surface material 2 is less than 3 μm, it becomes impossible to completely cover the carbon fiber protrusions on the carbon fiber-reinforced carbon substrate 1, and the glass mirror surface material 2 is covered with water.
Moreover, if the thickness exceeds the thickness of the substrate 1 (115 mm), the thermal expansion of the glass mirror surface material 2 will increase the thermal conductivity of the carbon fiber reinforced carbon mirror. This increases the influence on properties, making it difficult to utilize the excellent thermal properties of carbon fiber reinforced carbon. In addition, because there is a difference in thermal expansion coefficient between carbon fiber reinforced carbon and glass mirror surface material, temperature changes (-150°C to 300°C)
Since peeling occurs between the substrate 1 and the glass mirror surface material 2 by repeating step 'C), the thickness of the glass mirror surface material 2 is set in the range from 3 μm to the thickness of the substrate 1. be done.
好ましいガラスミラー表１ｍ材料としては、熱膨張係数
が−１．５〜６８ ｘ １０−’／”Ｃの範囲にあるガ
ラスである。特に好ましいガラスどしては、低熱膨張の
チクン珪酸カラス（例えば、米国ＣｏｒｎｉｎｇＧｌａ
ｓｓ Ｗｏｒｋｓ、コート番シ；７９７１）、石英カラ
ス（例えば、米国ＣｏｒｎｉｎｇＧｌａｓｓ Ｗｏｒｋ
ｓ。A preferred material for the glass mirror table 1m is glass having a coefficient of thermal expansion in the range of -1.5 to 68 x 10-'/''C.A particularly preferred glass is glass having a low thermal expansion (e.g. , Corning Gla, USA
ss Works, coat number 7971), quartz glass (for example, American Corning Glass Works)
s.
コート番号７９４０）などがある。また、ほう王Ｆ酸ガ
ラス（例えば、米国（：ｏｒｎｉｎｇＧｌａｓｓ Ｗｏ
ｒｋｓ。coat number 7940). Additionally, orning Glass Wo
rks.
コード番号７７４０．７７６０，７７２０゜７９４１な
と）、アルミノ珪酸ガラス（例えば、米国Ｃｏｒｎｉｎ
ｇＧｌａｓｑ Ｗｏｒｋｓ、コ−１ｑ番号１７２０゜１
７２３．０３１７なと）も用いられる３、さらに、石英
カラスとほうｆ１酸ガラスとアルミノ珪酸ガラスを混合
１７だものを用いても良い。code numbers 7740.7760, 7720゜7941), aluminosilicate glass (for example, American Cornin
gGlasq Works, Co-1q number 1720゜1
723.0317) may also be used.Furthermore, a mixture of quartz glass, borate glass, and aluminosilicate glass may also be used.
基板１とガラスミラー表面材料２の結合は、基板１とガ
ラスミラー表面材料２を禎層したものを真空あるいは窒
素、アルゴンなどの非酸化＋′ＩＳ″囲気中て、ガラス
ミラー表面材料の粘度が１０４ボイス、すなわち作業点
以下の温度て行わわる。この際、基板１とガラスミラー
表面材料２の間に１分な結合か得られるように前月−力
を加えるなとの方法かとられる。このような結合はホッ
トプレスなと通常周知の方法で行われる。また、この発
明による炭素繊維強化炭素製ミラーでは、有機もしくは
無機系の接着材料を用いてもよい。To bond the substrate 1 and the glass mirror surface material 2, the substrate 1 and the glass mirror surface material 2 are layered together in a vacuum or in a non-oxidizing atmosphere such as nitrogen or argon, so that the viscosity of the glass mirror surface material increases. The process is carried out at a temperature below 104 volts, that is, the working point.At this time, a method is used in which no force is applied so as to obtain a one-minute bond between the substrate 1 and the glass mirror surface material 2. The bonding is usually performed by a well-known method such as hot pressing.In addition, in the carbon fiber reinforced carbon mirror according to the present invention, an organic or inorganic adhesive material may be used.
金属被覆層３には、金、アルミニウム、モリブデン、銅
またはこわらの金属を主成分とする各種合金か用いられ
ても良い。これらの金属は、化学メッキ、物理的蒸着法
等周知の方法でガラスミラー表面材料の表面に被覆され
る。金属被覆層のＪ「＾さは、０．５ｍｍｍｍトート−
ることか好ましく、厚さが０．５ｍｍを越えると、ガラ
スミラー表面材料２との間の熱膨張率のｙ−により、使
用中に剥訓を７＋−シやすく、また、均一に被覆するこ
とも技術的に困難となる。The metal coating layer 3 may be made of gold, aluminum, molybdenum, copper, or various alloys containing a stiff metal as a main component. These metals are coated on the surface of the glass mirror surface material by a well-known method such as chemical plating or physical vapor deposition. The size of the metal coating layer is 0.5mmmm.
Preferably, if the thickness exceeds 0.5 mm, it is easy to peel off during use due to the coefficient of thermal expansion between the glass mirror surface material 2 and uniform coating. is also technically difficult.
金属被覆層は、ガラスミラー表面材料２の全面に被覆さ
れる。また、ガラスミラー表面材料２の表面の全面がミ
ラーとして利用されない場合には、必要とされる部分に
金属被覆層２を設ければ良い。この際、金属被覆層の面
積かガラスミラー表面材料２の表面積の５０％以下では
、炭素繊維強化炭素製ミラーの寸法や重量に対するミラ
ーとしての効率か低下するのて、金属被覆層３としては
ガラスミラー表面材料２の表面積の５０％以上あること
が好ましい。The metal coating layer is coated on the entire surface of the glass mirror surface material 2. Further, if the entire surface of the glass mirror surface material 2 is not used as a mirror, the metal coating layer 2 may be provided in the required portion. At this time, if the area of the metal coating layer is less than 50% of the surface area of the glass mirror surface material 2, the efficiency as a mirror with respect to the dimensions and weight of the carbon fiber-reinforced carbon mirror decreases, so the metal coating layer 3 is made of glass. It is preferable that the surface area of the mirror surface material 2 is 50% or more.
金属被覆層３は、更に、５ｉ０２、八１２０３ 、７＋
０．、などの保護膜でコーチインクされることが好まし
い。このコーディングは蒸着法など周知の方法で行われ
、金属被覆層３が傷や変質により劣化するのを防止する
ためのものである。The metal coating layer 3 further includes 5i02, 81203, 7+
0. It is preferable to coat with a protective film such as . This coating is performed by a well-known method such as vapor deposition, and is intended to prevent the metal coating layer 3 from deteriorating due to scratches or deterioration.
なお、ミラー面はきＬ面でも曲面であってもよい。Note that the mirror surface may be an L surface or a curved surface.
（作用）
この発明によれば、炭素繊維強化炭素の優れた機械的特
性と熱的特性か反映したミラーを得ることかできる。す
なわち、軽量なミラーか得られることは勿論、弾＋′［
率、強度、破壊靭性等の機械的特性に優れ、したがって
、こわれにくいミラーを得ることかできる。また、熱的
膨張率か小さく、熱伝導率が大きい等の熱的特性に優れ
、したかつて、寸法変化の少ない高精度のミラーを得る
ことかてきる。(Function) According to the present invention, it is possible to obtain a mirror that reflects the excellent mechanical properties and thermal properties of carbon fiber reinforced carbon. In other words, not only can you obtain a lightweight mirror, but also the bullet +
It is possible to obtain a mirror that has excellent mechanical properties such as hardness, strength, and fracture toughness, and is therefore hard to break. In addition, it has excellent thermal properties such as a small coefficient of thermal expansion and a high thermal conductivity, and it is possible to obtain a high-precision mirror with little dimensional change.
（実施例） 以下、この発明の一実施例を説明する。(Example) An embodiment of this invention will be described below.
炭素マトリックス中にｌｌ′ｌ径７μｍの炭素繊維を、
［０°１０°］ ｎ、［０°／９０°］８、［０°／±
４５°／９０° ］４、 ［０°／±６０°］ 、 、
ｆｆ−次元織物構造、および−二次元織物構造となる
ように配列した炭素繊維強化炭素をＣＶＤ法により作製
した。その後、さらに２８００℃〜３０００℃にて炭素
マトリックスの黒鉛化を４ｉ＝〕だ。このとき、炭素マ
トリックス中の炭素繊維の体積率は２０〜６５％とした
。このようにして密度１．６〜１ 、９６ ｇ／ｃｍ３
の炭素繊維強化炭素のＪ、を板をＩＢ＋だ。Carbon fibers with a diameter of 7 μm are placed in a carbon matrix,
[0°10°] n, [0°/90°]8, [0°/±
45°/90°]4, [0°/±60°], ,
Carbon fiber-reinforced carbon arranged to have an ff-dimensional woven structure and a -2-dimensional woven structure was produced by a CVD method. Thereafter, the carbon matrix was further graphitized at 2800° C. to 3000° C. 4i=]. At this time, the volume percentage of carbon fibers in the carbon matrix was set to 20 to 65%. In this way, the density is 1.6~1,96 g/cm3
The carbon fiber reinforced carbon J, board is IB+.
ついで、この炭素繊維強化炭素の基板の表面に、熱膨張
率か０．５Ｘ １０−’／”Ｃのチタン珪酸カラスを真
空中でホットプレス法により結合させ、さらに、このチ
タン珪酸ガラスの表面にＡｕを２０〜２００人スパッタ
法により蒸着し、炭素繊維強化炭素製ミラーを得た。Next, titanium silicate glass having a coefficient of thermal expansion of 0.5X 10-'/''C is bonded to the surface of this carbon fiber-reinforced carbon substrate by hot pressing in a vacuum, and Au was deposited by 20 to 200 sputtering methods to obtain a carbon fiber-reinforced carbon mirror.
このようにして得られた炭素繊維強化炭素製ミラーにつ
いて、比弾性率、熱伝導率、熱膨張係数を測定した。第
２〜４図はそれらの測定結果を示す。すなわち、第２図
は比弾性率を、第３図は熱伝導率を、第４図は１−記ミ
ラー表面に垂直な方向の熱膨張係数をそれぞれ示したも
のである。The specific elastic modulus, thermal conductivity, and thermal expansion coefficient of the carbon fiber-reinforced carbon mirror thus obtained were measured. Figures 2 to 4 show the results of those measurements. That is, FIG. 2 shows the specific modulus of elasticity, FIG. 3 shows the thermal conductivity, and FIG. 4 shows the coefficient of thermal expansion in the direction perpendicular to the mirror surface.
測定結果から明らかなように、実施例のミラーは機械的
特性と熱的特性において優れていることが判る。As is clear from the measurement results, it can be seen that the mirror of the example has excellent mechanical properties and thermal properties.
以上のように、この発明によれば、基板となる炭素繊維
強化炭素の優れた弾性率、強度、破壊靭性などの機械的
特性と低熱膨張、高熱伝導性などの熱的特性を利用てき
るので、軽量で機械的特竹と熱的時＋Ｉ］に優れ、した
かって、レーザの反射鏡や科学術１１！に搭載するのに
−１分な特性を有し、これらの用途に最適なミラーを得
ることかできる。As described above, according to the present invention, the excellent mechanical properties such as elastic modulus, strength, and fracture toughness, and thermal properties such as low thermal expansion and high thermal conductivity of the carbon fiber reinforced carbon serving as the substrate can be utilized. , lightweight, mechanical special bamboo and excellent thermal +I], and even laser reflectors and science and technology 11! This makes it possible to obtain mirrors that are ideal for these applications.
第１図はこの発明の炭素繊維強化炭素製ミラーの代表例
を示す縦断面図、第２図はこの発明の実７ｉｈ例による
炭素繊維強化炭素製ミラーの比弾性率を示すクラ７、第
３図は同し〈実施例による炭素繊維強化炭素製ミラーの
熱伝導率を示すクラ７、第４図は同し〈実施例による炭
素繊維強化炭素製ミラーのミラー面に小直な方向の熱膨
張係数を示すクラ７である。
１は炭素繊維強化炭素の基板、２はガラスミラー表面材
料、３は金属被覆層である。FIG. 1 is a vertical cross-sectional view showing a representative example of a carbon fiber-reinforced carbon mirror according to the present invention, and FIG. The same figure shows the thermal conductivity of the carbon fiber-reinforced carbon mirror according to the example. Figure 4 shows the same. This is the number 7 indicating the coefficient. 1 is a carbon fiber reinforced carbon substrate, 2 is a glass mirror surface material, and 3 is a metal coating layer.
Claims (15)
ガラスミラー表面材料と、その表面に設けた金属被覆層
とからなる炭素繊維強化炭素製ミラー。(1) A carbon fiber-reinforced carbon mirror consisting of a carbon fiber-reinforced carbon substrate, a glass mirror surface material bonded to the surface thereof, and a metal coating layer provided on the surface.
．５〜６８×１０＾−＾７／℃の範囲であることを特徴
とする特許請求の範囲第１項に記載の炭素繊維強化炭素
製ミラー。(2) The glass mirror surface material has a thermal expansion coefficient of -1
．． The carbon fiber-reinforced carbon mirror according to claim 1, wherein the carbon fiber-reinforced carbon mirror has a temperature in the range of 5 to 68 x 10^-^7/°C.
ガラスからなることを特徴とする特許請求の範囲第１項
または第２項に記載の炭素繊維強化炭素製ミラー。(3) The carbon fiber-reinforced carbon mirror according to claim 1 or 2, wherein the glass mirror surface material is made of titanium silicate glass with low thermal expansion.
とを特徴とする特許請求の範囲第１項または第２項に記
載の炭素繊維強化炭素製ミラー。(4) The carbon fiber-reinforced carbon mirror according to claim 1 or 2, wherein the glass mirror surface material is made of quartz glass.
ノ珪酸ガラス、ほう珪酸ガラスまたはこれらの混合物か
らなることを特徴とする特許請求の範囲第１項または第
２項に記載の炭素繊維強化炭素製ミラー。(5) The glass mirror surface material is made of carbon fiber reinforced carbon according to claim 1 or 2, wherein the glass mirror surface material is made of high silicate glass, aluminosilicate glass, borosilicate glass, or a mixture thereof. mirror.
ヨン系の炭素繊維のうち少なくとも１種類が同時に炭素
マトリックスと複合化されていることを特徴とする特許
請求の範囲第１項ないし第５項のいずれかに記載の炭素
繊維強化炭素製ミラー。(6) The carbon fiber-reinforced carbon is characterized in that at least one of PAN-based, pitch-based, and rayon-based carbon fibers is simultaneously composited with a carbon matrix. The carbon fiber-reinforced carbon mirror described in any of the above.
ス中で少なくとも２方向に配列されていることを特徴と
する特許請求の範囲第１項ないし第６項のいずれかに記
載の炭素繊維強化炭素製ミラー。(7) The carbon fiber reinforced carbon according to any one of claims 1 to 6, wherein carbon fibers are arranged in at least two directions in a carbon matrix. Made of mirror.
れた炭素繊維が用いられていることを特徴とする特許請
求の範囲第１項ないし第７項のいずれかに記載の炭素繊
維強化炭素製ミラー。(8) The carbon fiber reinforced carbon according to any one of claims 1 to 7, wherein carbon fibers woven two-dimensionally or three-dimensionally are used. Carbon mirror.
°／９０°、０°／±４５°／９０°及び０°／±６０
°からなる群より選ばれる一つの配向をとるように積層
されていることを特徴とする特許請求の範囲第１項ない
し第８項のいずれかに記載の炭素繊維強化炭素製ミラー
。(9) Carbon fiber reinforced carbon has carbon fibers of 0°/0°, 0
°/90°, 0°/±45°/90° and 0°/±60
The carbon fiber-reinforced carbon mirror according to any one of claims 1 to 8, characterized in that the carbon fiber-reinforced carbon mirror is laminated so as to have one orientation selected from the group consisting of .
料は、真空または非酸化性雰囲気でガラスの作業点以下
の温度で結合可能な加圧力を加え、直接結合されること
を特徴とする特許請求の範囲第１項ないし第９項のいず
れかに記載の炭素繊維強化炭素製ミラー。(10) A patent claim characterized in that the carbon fiber-reinforced carbon substrate and the glass mirror surface material are directly bonded by applying pressure capable of bonding in a vacuum or non-oxidizing atmosphere at a temperature below the working point of the glass. The carbon fiber-reinforced carbon mirror according to any one of items 1 to 9.
は、有機もしくは無機系の接着材を用いて結合されるこ
とを特徴とする特許請求の範囲第１項ないし第９項のい
ずれかに記載の炭素繊維強化炭素製ミラー。(11) The carbon fiber-reinforced carbon substrate and the glass mirror surface material are bonded together using an organic or inorganic adhesive. Carbon fiber reinforced carbon mirror.
これらを主成分とする合金属であることを特徴とする特
許請求の範囲第１項ないし第１１項のいずれかに記載の
炭素繊維強化炭素製ミラー。(12) The carbon fiber according to any one of claims 1 to 11, wherein the metal coating layer is Au, Al, Mo, Cu, or an alloy metal containing these as main components. Reinforced carbon mirror.
表面積にして少なくとも５０％以上設けられていること
を特徴とする特許請求の範囲第１２項に記載の炭素繊維
強化炭素製ミラー。(13) The carbon fiber-reinforced carbon mirror according to claim 12, wherein the metal coating layer covers at least 50% or more of the surface area of the glass mirror surface material.
ＴｉＯ＿２などの保護膜でコーティングされていること
を特徴とする特許請求の範囲第１２項または第１３項に
記載の炭素繊維強化炭素製ミラー。(14) The metal coating layer includes SiO_2, Al_2O_3,
The carbon fiber-reinforced carbon mirror according to claim 12 or 13, characterized in that the mirror is coated with a protective film such as TiO_2.
求の範囲第１項ないし第１４項のいずれかに記載の炭素
繊維強化炭素製ミラー。(15) The carbon fiber-reinforced carbon mirror according to any one of claims 1 to 14, wherein the mirror surface is a curved surface.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13934087A JPS63303301A (en) | 1987-06-03 | 1987-06-03 | Mirror made of carbon fiber reinforced carbon |
| FR8807449A FR2616554B1 (en) | 1987-06-03 | 1988-06-03 | MIRROR COMPRISING A CARBON MATERIAL REINFORCED WITH CARBON FIBERS |
| DE3819011A DE3819011A1 (en) | 1987-06-03 | 1988-06-03 | Mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13934087A JPS63303301A (en) | 1987-06-03 | 1987-06-03 | Mirror made of carbon fiber reinforced carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63303301A true JPS63303301A (en) | 1988-12-09 |
Family
ID=15243051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13934087A Pending JPS63303301A (en) | 1987-06-03 | 1987-06-03 | Mirror made of carbon fiber reinforced carbon |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63303301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03140901A (en) * | 1989-10-26 | 1991-06-14 | Kawasaki Heavy Ind Ltd | Invariable mirror for high-output laser |
-
1987
- 1987-06-03 JP JP13934087A patent/JPS63303301A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03140901A (en) * | 1989-10-26 | 1991-06-14 | Kawasaki Heavy Ind Ltd | Invariable mirror for high-output laser |
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