JPH03228847A - Oxynitride glass and production thereof - Google Patents
Oxynitride glass and production thereofInfo
- Publication number
- JPH03228847A JPH03228847A JP2080790A JP2080790A JPH03228847A JP H03228847 A JPH03228847 A JP H03228847A JP 2080790 A JP2080790 A JP 2080790A JP 2080790 A JP2080790 A JP 2080790A JP H03228847 A JPH03228847 A JP H03228847A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- oxynitride
- phosphorus
- oxynitride glass
- raw material
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 19
- 239000011574 phosphorus Substances 0.000 claims abstract description 19
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 150000004767 nitrides Chemical class 0.000 claims abstract description 4
- -1 phosphorus compound Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052791 calcium Inorganic materials 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229910052745 lead Inorganic materials 0.000 abstract description 2
- 239000012299 nitrogen atmosphere Substances 0.000 abstract description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- 229910052720 vanadium Inorganic materials 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract 2
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 2
- 229910000391 tricalcium phosphate Inorganic materials 0.000 abstract 2
- 235000019731 tricalcium phosphate Nutrition 0.000 abstract 2
- 229910052581 Si3N4 Inorganic materials 0.000 abstract 1
- 229910008317 Si—M1—M2—O—N Inorganic materials 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 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
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000075 oxide glass Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 206010016275 Fear Diseases 0.000 description 1
- 229910005091 Si3N Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 1
- 229960001231 choline Drugs 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000005365 phosphate glass Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Glass Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はガラス内部に欠陥の少ないオキシナイトライド
ガラスおよび該ガラスの製造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an oxynitride glass having few defects inside the glass and a method for producing the glass.
［従来技術とその課題］
オキシナイトライドガラスは、酸化物ガラス中の酸素原
子の一部が窒素原子に置換された構造を有し、酸化物ガ
ラスより結合が多く、高い弾性率、高い硬度など優れた
物理的、化学的特性を有する。[Prior art and its problems] Oxynitride glass has a structure in which some of the oxygen atoms in oxide glass are replaced with nitrogen atoms, and has more bonds than oxide glass, and has a high elastic modulus and high hardness. It has excellent physical and chemical properties.
このようなオキシナイトライドガラスは、従来、溶融法
、ゾル−ゲル法、Ｎ、ガス吹き込み法および多孔質ガラ
スのＮＨｉガス処理などにより製造されている。このう
ち溶融法によってオキシナイトライドガラスを製造する
には、Ｓ ｉ３Ｎ、、ＡＱＮなどの窒化物原料を酸化物
など他のガラス原料と混合し溶融する方法が一般的であ
る。Such oxynitride glass has conventionally been manufactured by a melting method, a sol-gel method, an N gas blowing method, and NHi gas treatment of porous glass. To produce oxynitride glass by the melting method, a common method is to mix nitride raw materials such as Si3N, AQN, etc. with other glass raw materials such as oxides, and then melt the mixture.
しかしながら、このような従来の溶融法ではガラス内部
の欠陥により充分なオキシナイトライドガラスの強度は
得られていない。かかる内部欠陥は、ガラス原料中に不
純物として含まれているＦｅ（またはＦｅａｒｓ）が高
温溶融下において３Ｆｅ＋２ＳｉｓＮｔ −４３ＦｅＳ
ｉ、＋４Ｎ、のような反応を生じてフェロシリコンを析
出し、このフェロシリコンがガラス内部の欠陥となり、
ガラス強度の低下などガラスの特性に悪影響を与えるも
のと推測される。However, with such conventional melting methods, sufficient strength of oxynitride glass cannot be obtained due to defects inside the glass. Such internal defects occur when Fe (or Fears) contained as an impurity in the glass raw material is melted at a high temperature.
A reaction like i, +4N occurs and ferrosilicon is precipitated, and this ferrosilicon becomes a defect inside the glass.
It is presumed that this adversely affects the properties of the glass, such as a decrease in glass strength.
本発明の目的は、内部に欠陥のない高強度のオキシナイ
トライドガラスを提供すると共に、このようなガラスの
製造法を提供することにある。An object of the present invention is to provide a high-strength oxynitride glass with no internal defects, and to provide a method for manufacturing such glass.
［課題を解決するための手段］
本発明は必須成分として１０重量％以下のリンを含有す
ることを特徴とするオキシナイトライドガラス、および
その製造法を提供するものである。[Means for Solving the Problems] The present invention provides an oxynitride glass characterized by containing 10% by weight or less of phosphorus as an essential component, and a method for producing the same.
本発明のオキシナイトライドガラスには、従来のオキシ
ナイトライドガラスと異なりフェロシリコンの析出がな
く内部の欠陥が極めて少なく、特に繊維化した場合によ
り高い繊維強度を示す。Unlike conventional oxynitride glasses, the oxynitride glass of the present invention has no precipitation of ferrosilicon, has extremely few internal defects, and exhibits higher fiber strength, especially when formed into fibers.
従来、リンを含有するガラスとしてはリン酸塩ガラスが
知られている。また、その耐湿性を向上させるため窒素
を導入したものも知られている。Phosphate glasses are conventionally known as glasses containing phosphorus. In addition, there are also known ones in which nitrogen is introduced in order to improve the moisture resistance.
しかしながら、このようなガラスはリンの含有量が４０
重量％以上と多く、本発明ガラスのようにオキシナイト
ライドガラス中に少量のリンを配合したガラスは知られ
ていない。However, such glasses have a phosphorus content of 40
There is no known glass in which a small amount of phosphorus is blended into an oxynitride glass such as the glass of the present invention.
リンを含有する本発明オキシナイトライドガラスの基本
組成の代表的なものとしては、Ｃａ−８ｉＡＩ２−０−
Ｎ、 Ｎａ−Ｃａ−９ｉ−０−Ｎ、 Ｌａ５ｉ−Ａ１２
−０−Ｎ、Ｎａ−Ｂ−９ｉ−０−ＮＳ Ｍｇ５ｉ−ＡＱ
−０−Ｎ、５ｉ−Ａ（！−０−ＮＳ ＹＡＱ−３ｉ−０
−Ｎ、 Ｎａ−Ｂ−ＡＱ−Ｐ−０−Ｎなどが挙げられる
。A typical basic composition of the oxynitride glass of the present invention containing phosphorus is Ca-8iAI2-0-
N, Na-Ca-9i-0-N, La5i-A12
-0-N, Na-B-9i-0-NS Mg5i-AQ
-0-N,5i-A(!-0-NS YAQ-3i-0
-N, Na-B-AQ-P-0-N, and the like.
かかるオキシナイトライドガラスのうち特に好ましい組
成としては、５１−Ｍ、−Ｍ、−０−Ｎ系を有するオキ
シナイトライドガラスであって、５ｉｆｔ、５ｌｌＮ４
およびＭ、ｏをモル％にて下式：％式％）
（）
（）
［式中、Ｍ、はＣａまたはＣａ＋Ｍｇであり、Ｍ、はＡ
ＱＳＳ ｒ ｓ Ｌ ａＳＢ ａ、 ＹＳＴ ｔ ＳＺ
ｒ ｓ Ｃｅ ５ＮａＳＫ、５ｂＳＢ、Ｃｒ、Ｐｂ、
ＶおよびＳｎから選ばれた少な（とも１種の金属を意味
する。］を満足する量含有するオキシナイトライドガラ
スが挙げられる。該ガラスはＳｔＯ，０〜４０モル％、
ＣａＯ２６〜７０モル％、ＭｇＯ０〜２０モル％および
Ｍ、２２原子％以下を含むのが好ましい。前記ガラスは
、必須成分として多量のＣａを含有し１５原子％以上の
窒素を含み高い弾性率を有する。Among these oxynitride glasses, a particularly preferred composition is an oxynitride glass having a 51-M, -M, -0-N system, 5ift, 5llN4
and M, o in mol% by the following formula: %formula%) () () [wherein, M is Ca or Ca+Mg, and M is A
QSS r s L aSB a, YST t SZ
r s Ce 5NaSK, 5bSB, Cr, Pb,
Examples include oxynitride glasses containing a satisfactory amount of a small amount selected from V and Sn (both mean one type of metal).The glasses include StO, 0 to 40 mol%,
It is preferable to contain 26 to 70 mol % of CaO, 0 to 20 mol % of MgO, and 22 atomic % or less of M. The glass contains a large amount of Ca as an essential component, contains 15 atomic % or more of nitrogen, and has a high elastic modulus.
リン供給原料としてはリン単体でもよいが、その他種々
のリン化合物が使用してもよい。例えばＣａ５Ｐｔ、（
ＮＨ，）ｓｈｏ、、Ｇａ５（ＰＯ４）ｔ、Ｐ２Ｏ５、Ａ
（！（Ｈ，ＰＯ４）３などが用いられてよい。またこれ
らは併用してもよい。As the phosphorus feedstock, phosphorus alone may be used, but various other phosphorus compounds may also be used. For example, Ca5Pt, (
NH,)sho,,Ga5(PO4)t,P2O5,A
(!(H, PO4)3, etc. may be used. Also, these may be used in combination.
ガラス中のリンの含有量は１０重量％以下、好ましくは
０．０２〜１．０重量％である。リンの含有量が１．０
重量％、特に１０重量％を越えるとＡ１２Ｎなどの結晶
がガラス中に析出する−０また、フェロシリコン析出防
止の効果の点から０．０２重量％以上のリンを配合する
のが好ましい。The content of phosphorus in the glass is 10% by weight or less, preferably 0.02 to 1.0% by weight. Phosphorus content is 1.0
If the amount exceeds 10% by weight, crystals such as A12N will precipitate in the glass.In addition, from the viewpoint of preventing ferrosilicon precipitation, it is preferable to incorporate phosphorus in an amount of 0.02% by weight or more.
本発明のオキシナイトライドガラスを製造するには、従
来公知の溶融法が用いられてよい。すなわち、酸化物、
窒化物などのガラス原料粉末を溶融するにあたり、製品
ガラス中のリン含有量が１０重量％以下、好ましくは０
．０２〜１．０重量％となるようリンまたはリン化合物
を加えて従来法と同様、窒素などの不活性雰囲気中、約
１４００〜１９５０℃にて溶融を行う。溶融は電気炉、
イメージ炉などの加熱炉で行なってよい。ルツボの材質
としては、ＢＮＳＭｏ、Ｔａ、ＷＳＳｉＣなどが用いら
れる。Conventionally known melting methods may be used to produce the oxynitride glass of the present invention. That is, oxides,
When melting glass raw material powder such as nitride, the phosphorus content in the product glass is 10% by weight or less, preferably 0.
．． Phosphorus or a phosphorus compound is added to give a concentration of 0.02 to 1.0% by weight, and melting is carried out at about 1400 to 1950° C. in an inert atmosphere such as nitrogen, as in the conventional method. Melting is done in an electric furnace,
This may be carried out in a heating furnace such as an image furnace. BNSMo, Ta, WSSiC, etc. are used as the material of the crucible.
［作用コ
リンを加えることによりオキシナイトライドガラス原料
中の不純物であるＦまたはＦｅｔｕ３がフェロシリコン
として析出するのが防止される。[Effect: By adding choline, F or Fetu3, which is an impurity in the oxynitride glass raw material, is prevented from precipitating as ferrosilicon.
［実施例］
つぎに本発明を実施例、比較例に基づきさらに具体的に
説明する。[Examples] Next, the present invention will be described in more detail based on Examples and Comparative Examples.
実施例１
オキシナイトライドガラス原料［５ｉＯｚ８．６％、５
ｉａＮ４１９．４％、Ａｆ２ｔ０．５．２％、Ｃａ０５
９．８％、ＭｇＯ６，９％（いずれもモル％）コ４０ｇ
およびＡρ（Ｈ，ＰＯ，）３０．４ｇ （リンＯ１？９
重量％）を秤量、混合した。原料中、Ｆｅ＠Ｏｓは０．
１重量％含まれていた。これを底面にノズルを有するＭ
ｏ製ルツボ（外径４５ｍｍ、内径４０ｍｍ。Example 1 Oxynitride glass raw material [5iOz8.6%, 5
iaN419.4%, Af2t0.5.2%, Ca05
9.8%, MgO6.9% (both mole%) 40g
and Aρ(H,PO,)30.4g (phosphorus O1?9
% by weight) were weighed and mixed. In the raw materials, Fe@Os is 0.
It contained 1% by weight. This is M with a nozzle on the bottom.
O made crucible (outer diameter 45mm, inner diameter 40mm.
高さ５０ｍｍ）に入れ、窒素雰囲気下１６９０℃にて２
時間溶融した。冷却後、ガラスの一部を切り出し平行研
磨を行い、光学顕微鏡で観察したところ、第１図に示す
ごとく、均質でフェロシリコンなどの析出は観察されな
かった。2 at 1690℃ under nitrogen atmosphere.
melted for an hour. After cooling, a part of the glass was cut out, parallel polished, and observed under an optical microscope. As shown in FIG. 1, it was found to be homogeneous and no precipitation of ferrosilicon or the like was observed.
実施例２〜５
リン供給源として各々下記の量のＣａ３Ｐ２を添加した
以外は実施例１と同様にして実施例２〜５のオキシナイ
トライドガラスを製造した。底板中心のノズル（３ｍｍ
φ）に窒化ポウ素の栓をしたＭ。Examples 2 to 5 Oxynitride glasses of Examples 2 to 5 were produced in the same manner as in Example 1, except that the following amounts of Ca3P2 were added as a phosphorus source. Nozzle in the center of the bottom plate (3mm
φ) with a plug of boron nitride.
製ルツボのなかに前記各ガラス入れ、１６９０°Ｃにて
２時間溶解した。ついて１５５０℃に降温した後、窒化
ホウ素栓を取り紡糸を行った。繊維径は１４μｍであっ
た。顕微鏡観察および引張強度測定の結果を下記に示す
。Each of the above glasses was placed in a crucible and melted at 1690°C for 2 hours. After the temperature was lowered to 1550° C., the boron nitride stopper was removed and spinning was performed. The fiber diameter was 14 μm. The results of microscopic observation and tensile strength measurement are shown below.
Ｃａ３Ｐ、添加量 フェロ 引張強度（２重量
％換算） シリコン （ｋｇ／ｍｎ＋’）実施例２
０．０２ 有 ２００〃
３ ０゜１ 無 ２５０〃 ４
０．５
無
８０
比較例１
Ａρ（Ｈ２ＰＯ４）３を配合しなかった以外は、実施例
１と同様の条件にて溶融を行いオキシナイトライドガラ
スを製造した。得られたガラスを実施例Ｉと同様に処理
したザンプルは、第２図の顕微鏡写真に示すごとく数１
０μｍの球状物質の析出が認められた。ＥＰＭＡにより
組成分析を行った結果、鉄とシリコンの共融金属ＦｅＳ
＋２（フェロシリコン）であることが判明した。Ca3P, amount added Ferro Tensile strength (converted to 2% by weight) Silicon (kg/mn+') Example 2
0.02 Yes 200
3 0°1 None 250 4 0.5 None 80 Comparative Example 1 Oxynitride glass was produced by melting under the same conditions as in Example 1, except that Aρ(H2PO4)3 was not blended. A sample obtained by treating the obtained glass in the same manner as in Example I had a number of 1 as shown in the micrograph of FIG.
Precipitation of 0 μm spherical material was observed. As a result of compositional analysis by EPMA, it was found that FeS is a eutectic metal of iron and silicon.
It turned out to be +2 (ferrosilicon).
［発明の効果］
本発明のオキシナイトライドガラスは、内部欠陥の原因
となるフェロシリコンの析出が防止され、高強度のオキ
シナイトライドガラスが得られる。[Effects of the Invention] In the oxynitride glass of the present invention, precipitation of ferrosilicon that causes internal defects is prevented, and a high-strength oxynitride glass can be obtained.
第１図は本発明のオキシナイトライドガラスの粒子構造
を示す顕微鏡写真（１００倍）、第２図は従来のオキシ
ナイトライドガラスの粒子構造を示す顕微鏡写真（１０
０倍）である。Figure 1 is a micrograph (100x) showing the particle structure of the oxynitride glass of the present invention, and Figure 2 is a micrograph (100x) showing the particle structure of conventional oxynitride glass.
0 times).
Claims (2)
るオキシナイトライドガラス。(1) Oxynitride glass characterized by containing 10% by weight or less of phosphorus.
キシナイトライドガラスを製造するにあたり、該原料に
リン、Ｃａ＿３Ｐ＿２、（ＮＨ＿４）＿３ＰＯ＿４、Ｃ
ａ＿３（ＰＯ＿４）＿２、Ｐ＿２Ｏ＿５およびＡｌ（Ｈ
＿２ＰＯ＿４）＿３から選ばれた少なくとも１種のリン
化合物を添加して溶融を行うことを特徴とするオキシナ
イトライドガラスの製造法。(2) When producing oxynitride glass by melting raw material powder containing oxides and nitrides, the raw materials include phosphorus, Ca_3P_2, (NH_4)_3PO_4, C
a_3(PO_4)_2, P_2O_5 and Al(H
A method for producing oxynitride glass, which comprises adding at least one phosphorus compound selected from _2PO_4)_3 and melting the glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2080790A JPH03228847A (en) | 1990-01-30 | 1990-01-30 | Oxynitride glass and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2080790A JPH03228847A (en) | 1990-01-30 | 1990-01-30 | Oxynitride glass and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03228847A true JPH03228847A (en) | 1991-10-09 |
Family
ID=12037312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2080790A Pending JPH03228847A (en) | 1990-01-30 | 1990-01-30 | Oxynitride glass and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03228847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821575A (en) * | 2018-07-25 | 2018-11-16 | 长沙浩然医疗科技有限公司 | A kind of protective glasses glass and preparation method thereof |
-
1990
- 1990-01-30 JP JP2080790A patent/JPH03228847A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821575A (en) * | 2018-07-25 | 2018-11-16 | 长沙浩然医疗科技有限公司 | A kind of protective glasses glass and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5532194A (en) | Cordierite glass-ceramic and method for manufacturing the same | |
| CA2094931A1 (en) | Process for making a durable bioabsorbable fiber | |
| US5186729A (en) | Method of making in-situ whisker reinforced glass ceramic | |
| CA1244485A (en) | Method for utilizing slag from metal production | |
| US4482380A (en) | Hardener for water glass cements | |
| US4946811A (en) | Method for mixing molten iron silicate with ferroalloy slag in order to produce fire-resistant and chemically resistant fiber | |
| US4830991A (en) | Silicon nitride sintered bodies | |
| US3220861A (en) | Manufacture of heat absorbing glasses | |
| JPH04119941A (en) | Production of crystallized glass | |
| JPH03228847A (en) | Oxynitride glass and production thereof | |
| US4043821A (en) | Vitroceramic materials and process of making the same | |
| US3975308A (en) | Preparation of pyrophosphates | |
| US3679443A (en) | Mineral wool made from silicate glass comprising iron oxides | |
| JPS6136135A (en) | Filling glass for magnetic recording head | |
| US3416938A (en) | Mgo-zr-o2 fused cast refractory | |
| JPS58167444A (en) | Alkali-resistant glass fiber | |
| US20150144828A1 (en) | Si-Mg-BASED INORGANIC FIBERS AND COMPOSITION CONTAINING THE SAME | |
| US20240010547A1 (en) | Gillespite glass-ceramics | |
| JP2000160434A (en) | High purity alumina filament and its fiber product and fire-resistant insulating material | |
| JP2829882B2 (en) | Fiber filler material | |
| SU937375A1 (en) | Stone casting composition | |
| JPH0339985B2 (en) | ||
| WO1989004813A1 (en) | Method for mixing ferrochromium slag in order to produce fire-resistant and chemically resistant fiber | |
| GB2237016A (en) | Glass-ceramic material and production thereof | |
| Hendronursito et al. | The effect of additive (SiO2, MgO, and CaO) in the hardness and crystal phase of basalt glass-ceramics |