JPS638270A - Sealing composition - Google Patents
Sealing compositionInfo
- Publication number
- JPS638270A JPS638270A JP15107286A JP15107286A JPS638270A JP S638270 A JPS638270 A JP S638270A JP 15107286 A JP15107286 A JP 15107286A JP 15107286 A JP15107286 A JP 15107286A JP S638270 A JPS638270 A JP S638270A
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- weight
- ceramics
- sealing composition
- oxide
- 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
- 238000007789 sealing Methods 0.000 title claims description 21
- 239000000203 mixture Substances 0.000 title claims description 15
- 239000000919 ceramic Substances 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000011195 cermet Substances 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 22
- 229910001507 metal halide Inorganic materials 0.000 description 7
- 150000005309 metal halides Chemical class 0.000 description 7
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- NLQFUUYNQFMIJW-UHFFFAOYSA-N dysprosium(III) oxide Inorganic materials O=[Dy]O[Dy]=O NLQFUUYNQFMIJW-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- -1 Aluminum oxide-yttrium oxide-silicon dioxide-magnesium oxide Chemical compound 0.000 description 1
- YAIQCYZCSGLAAN-UHFFFAOYSA-N [Si+4].[O-2].[Al+3] Chemical compound [Si+4].[O-2].[Al+3] YAIQCYZCSGLAAN-UHFFFAOYSA-N 0.000 description 1
- ZCWWGVYFXOYCND-UHFFFAOYSA-N aluminum magnesium dioxosilane oxygen(2-) Chemical compound [Si](=O)=O.[O-2].[Mg+2].[O-2].[Al+3] ZCWWGVYFXOYCND-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 229910003440 dysprosium oxide Inorganic materials 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- WHOPEPSOPUIRQQ-UHFFFAOYSA-N oxoaluminum Chemical compound O1[Al]O[Al]1 WHOPEPSOPUIRQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Landscapes
- Ceramic Products (AREA)
- Glass Compositions (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、セラミックス相互間又はセラミックスと金属
若しくはサーメットとを封着する封着用組成物に係り、
特にメタルハライドランプ等の発光管として用いられる
透光性アルミナセラミックスとアルミナセラミックス、
アルミナナーメット又はニオブ、モリブデン等の耐熱性
金属とを封着する封着用組成物に関するものでおる。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a sealing composition for sealing ceramics together or between ceramics and metals or cermets,
In particular, translucent alumina ceramics and alumina ceramics used as arc tubes for metal halide lamps, etc.
This invention relates to a sealing composition for sealing alumina metal or a heat-resistant metal such as niobium or molybdenum.
［従来の技術］
従来、メタルハライドランプ等の発光管として用いられ
る透光性アルミナセラミックスとアルミナセラミックス
又は耐熱性金属等とを封着する封着用組成物としては、
例えば特公昭５Ｂ−４４０２５号公報所載の酸化アルミ
ニウム一二酸化ケイ素−酸化ジスプロシウム系（以下、
Ａｌ１０３−３ ！０２−Ｄｙ２Ｏ３系と記す）、特開
昭５９−９２９７６号公報所載の酸化ランタン−酸化ベ
リリウムー二酸化ケイ素、酸化アルミニウム、酸化イツ
トリウム、酸化マグネシウム系（以下、Ｌａ２Ｏ３−Ｂ
ｅ〇−３ｉ０２．Ａｊ！２０３．Ｙ２Ｏ３，ＭＣｌ０系
と記す）、特開昭５９−２１９８４９号公報所載の酸化
アルミニウムー酸化イットリウムー二酸化ケイ素−酸化
マグネシウム系（以下、Ａｌ２Ｏ２−Ｙ２０３−３ ｉ
０２−ＭＣｌ０系と記す）及び特開昭５９−２１９８
５０号公報所載の酸化マグネシウム−酸化アルミニウム
ー二酸化ケイ素系（以下、ＭｇＯ−１！ ２０３−３
ｉ ０２系と記す）が知られている。[Prior Art] Conventionally, sealing compositions for sealing translucent alumina ceramics and alumina ceramics or heat-resistant metals used as arc tubes of metal halide lamps and the like include:
For example, aluminum oxide silicon monodioxide-dysprosium oxide system (hereinafter referred to as
Al103-3! 02-Dy2O3 system), lanthanum oxide-beryllium oxide-silicon dioxide, aluminum oxide, yttrium oxide, magnesium oxide system (hereinafter referred to as La2O3-B) described in JP-A-59-92976.
e〇-3i02. Aj! 203. Aluminum oxide-yttrium oxide-silicon dioxide-magnesium oxide system (hereinafter referred to as Al2O2-Y203-3 i
02-MC10 series) and JP-A-59-2198
Magnesium oxide-aluminum oxide-silicon dioxide system (hereinafter referred to as MgO-1! 203-3) described in Publication No. 50
i02 series) is known.
［発明が解決しようとする問題点１
しかし、上記従来のＡｆ２０３−３ｉＯ２−Ｄｙ２０３
系、Ｌａ２０３−１３ｅ○−３ｉＯ２゜ＡＪ２２０３
、Ｙ２０３ 、ＭＣｌ０系、Ａｆ！２０３−Ｙ２０３−
３ ｉ ０２−ＭＱＯ系及びＭ（ｌｌｉＯ−Ａｌ２Ｏ２
−３！ ０２系の封着用組成物のいずれもハロゲン蒸気
に対する耐性が弱いため、封入物である金属ハライドと
反応してしまい、これがリークの原因や演色性低下につ
ながる問題がある。[Problem to be solved by the invention 1 However, the above conventional Af203-3iO2-Dy203
system, La203-13e○-3iO2゜AJ2203
, Y203, MCl0 series, Af! 203-Y203-
3 i 02-MQO system and M(lliO-Al2O2
-3! All of the 02-series sealing compositions have low resistance to halogen vapor, so they react with the metal halide that is the filler, which causes leakage and a problem in that the color rendition deteriorates.
又、熱膨張係数が透光性アルミナセラミックスのそれと
異なるため、封着部にクラックが発生してリークの原因
となる問題がある。Furthermore, since the coefficient of thermal expansion is different from that of translucent alumina ceramics, there is a problem in that cracks occur in the sealed portion, causing leakage.
そこで、本発明は、ハロゲン蒸気に対する耐性を強くし
得ると共に、金属ハライドとの反応を防止し得、かつ封
着部におけるクラックの発生を少なくし得るようにした
封着用組成物を提供しようとするものである。SUMMARY OF THE INVENTION Accordingly, the present invention aims to provide a sealing composition that can increase resistance to halogen vapor, prevent reaction with metal halides, and reduce the occurrence of cracks in the sealed portion. It is something.
［問題点を解決するための手段］
本発明は、前記問題点を解決するため、セラミックス相
互間又はセラミックスと金属若しくはサーメットとを封
着する封着用組成物であって、酸化アルミニウム１３〜
５０重量％、二酸化ケイ素１５〜５０重量％及び酸化イ
ツトリウム２５〜５０重量％からなるものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a sealing composition for sealing between ceramics or between ceramics and a metal or cermet, which comprises aluminum oxide 13-
50% by weight, 15-50% by weight of silicon dioxide and 25-50% by weight of yttrium oxide.
［作 用］
酸化アルミニウム（以下、Ａ、！２０３と記す）は、上
記添加量の範囲において透光性アルミナセラミックスと
の結合性を良好にする。添加量が５０重量％を越えると
融点が１５００’Ｃ以上となり、封着作業が困難となる
。又、添加量が１３重量％未満では、熱膨張係数が透光
性アルミナセラミックスのそれより小ざくなってしまう
。[Function] Aluminum oxide (hereinafter referred to as A, !203) improves the bondability with the translucent alumina ceramic within the above-mentioned addition amount range. If the amount added exceeds 50% by weight, the melting point will exceed 1500'C, making sealing work difficult. Furthermore, if the amount added is less than 13% by weight, the coefficient of thermal expansion will be smaller than that of the translucent alumina ceramics.
二酸化ケイ素（以下、Ｓ ｉ ０２と記す）は、上記添
加量の範囲において融点の低下に関与する。Silicon dioxide (hereinafter referred to as S i 02) is involved in lowering the melting point within the range of the amount added above.
添加量が５０重量％を越えると熱膨張係数が透光性アル
ミナセラミックスのそれより小さくなり、リークの原因
となる。又、添加量が１５重量％未満では、適正な融点
が１ｑられない。If the amount added exceeds 50% by weight, the coefficient of thermal expansion will be smaller than that of translucent alumina ceramics, causing leakage. Further, if the amount added is less than 15% by weight, an appropriate melting point cannot be achieved.
酸化イツトリウム（以下、Ｙ２０３と記す）は、上記添
加量の範囲において熱膨張係数を透光性アルミナセラミ
ックスのそれに近づけ、同時にアルミナと化合物を生成
し、これが耐ハロゲン性を高める。添加量が５０重量％
を越えると高融点となる。Yttrium oxide (hereinafter referred to as Y203) brings the coefficient of thermal expansion closer to that of the translucent alumina ceramic within the above-mentioned addition amount range, and at the same time forms a compound with alumina, which improves halogen resistance. Addition amount is 50% by weight
If it exceeds , it will have a high melting point.
又、添加量が２５重量％未満では、熱膨張が低くなって
リークの原因となる。Furthermore, if the amount added is less than 25% by weight, the thermal expansion will be low, causing leakage.
［実施例１ 以下、本発明の詳細な説明する。[Example 1 The present invention will be explained in detail below.
Ａｌ２Ｏ２、ＳｉＯ２及びＹ２０３の扮末を表に示す割
合で混合し、これにエタノールを加えてアルミナ質のボ
ールミルで粉砕混合してから乾燥し、この混合粉にポリ
ビニルアルコール（ＰＶＡ）を結合剤として添加し、ペ
ースト状の封着用組成物Ｎｏ、 １〜Ｎｏ、 １０を得
た。Mix powders of Al2O2, SiO2, and Y203 in the proportions shown in the table, add ethanol to this, grind and mix in an alumina ball mill, then dry, and add polyvinyl alcohol (PVA) as a binder to this mixed powder. Then, paste-like sealing compositions No. 1 to No. 10 were obtained.
このペースト状封着用組成物をメタルハライドランプに
用いられる多結晶の透光性アルミナセラミックスからな
る発光管とアルミナセラミックスからなる端部円盤との
間の元日シールに使用し、真空雰囲気中で１５００’Ｃ
まで昇温した後に徐冷して封着した。This paste-like sealing composition was used for New Year's Day sealing between an arc tube made of polycrystalline translucent alumina ceramics used in a metal halide lamp and an end disk made of alumina ceramics. C
After the temperature was raised to 1, it was slowly cooled and sealed.
封着した発光管の気密性、寿命及び耐熱度の試験結果を
表に示す。The test results of the sealed arc tube's airtightness, lifespan, and heat resistance are shown in the table.
なお、試料中Ｎｏ、 ４〜Ｎｏ、 ３の封着用組成物を
用いて製）青されたメタルハライドランプは、リークも
なく、シール部にいかなる化学変化もみら机なかった。Note that the blued metal halide lamps (manufactured using the sealing compositions of samples No. 4 to No. 3) had no leakage and no chemical change was observed in the sealing portion.
又、上記実施例においては、多結晶の透光性アルミナセ
ラミックスとアルミナセラミックスとを封着する場合に
ついて述べたが、多結晶の透光性アルミナセラミックス
と、この透光性アルミナセラミックスに熱膨張係数が近
いアルミナサーメット又はニオブ、モリブデン等の耐熱
性金属との封着用組成物として用いることができる。In addition, in the above embodiment, a case where polycrystalline translucent alumina ceramics and alumina ceramics are sealed together is described, but the polycrystalline translucent alumina ceramics and the translucent alumina ceramics have a thermal expansion coefficient. It can be used as a sealing composition with alumina cermet or heat-resistant metals such as niobium and molybdenum, which have similar properties.
［発明の効果］
以上のように本発明によれば、酸化イツトリウムがアル
ミナと化合して耐ハロゲン性の化合物を生成するので、
従来のようにランプ点灯中、成分の一部が金属ハライド
と反応し発光して演色性を低下させたりする現象も殆ん
ど生じない。又、透光性アルミナセラミックスやアルミ
ナサーメットに対する濡れ性（結合性）が良好で、熱膨
張係数も近似しているので、熱応力等によるクランクの
発生を極めて少なくすることができる。[Effects of the Invention] As described above, according to the present invention, yttrium oxide combines with alumina to produce a halogen-resistant compound.
Unlike conventional lamps, there is almost no phenomenon in which some of the components react with metal halides and emit light during lamp lighting, resulting in a decrease in color rendering properties. Furthermore, since it has good wettability (bondability) with translucent alumina ceramics and alumina cermet, and has a similar coefficient of thermal expansion, it is possible to extremely reduce the occurrence of cranking due to thermal stress or the like.
Claims (1)
くはサーメットとを封着する封着用組成物であつて、酸
化アルミニウム１３〜５０重量％、二酸化ケイ素１５〜
５０重量％及び酸化イットリウム２５〜５０重量％から
なることを特徴とする封着用組成物。(1) A sealing composition for sealing between ceramics or between ceramics and metal or cermet, comprising 13 to 50% by weight of aluminum oxide and 15 to 50% by weight of silicon dioxide.
A sealing composition comprising 50% by weight of yttrium oxide and 25 to 50% by weight of yttrium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15107286A JPS638270A (en) | 1986-06-27 | 1986-06-27 | Sealing composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15107286A JPS638270A (en) | 1986-06-27 | 1986-06-27 | Sealing composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS638270A true JPS638270A (en) | 1988-01-14 |
Family
ID=15510692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15107286A Pending JPS638270A (en) | 1986-06-27 | 1986-06-27 | Sealing composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS638270A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6465940B1 (en) * | 1998-07-09 | 2002-10-15 | Ushiodenki Kabushiki Kaisha | Cermet and ceramic discharge lamp |
| JP2013095644A (en) * | 2011-11-02 | 2013-05-20 | Covalent Materials Corp | Polycrystalline ceramic joined body, and method for manufacturing the same |
| JP2019073421A (en) * | 2017-10-19 | 2019-05-16 | 東ソ−・エスジ−エム株式会社 | White amorphous glass |
-
1986
- 1986-06-27 JP JP15107286A patent/JPS638270A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6465940B1 (en) * | 1998-07-09 | 2002-10-15 | Ushiodenki Kabushiki Kaisha | Cermet and ceramic discharge lamp |
| JP2013095644A (en) * | 2011-11-02 | 2013-05-20 | Covalent Materials Corp | Polycrystalline ceramic joined body, and method for manufacturing the same |
| JP2019073421A (en) * | 2017-10-19 | 2019-05-16 | 東ソ−・エスジ−エム株式会社 | White amorphous glass |
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