JPH0360439A - Oxynitride glass and production thereof - Google Patents
Oxynitride glass and production thereofInfo
- Publication number
- JPH0360439A JPH0360439A JP19708389A JP19708389A JPH0360439A JP H0360439 A JPH0360439 A JP H0360439A JP 19708389 A JP19708389 A JP 19708389A JP 19708389 A JP19708389 A JP 19708389A JP H0360439 A JPH0360439 A JP H0360439A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- oxynitride glass
- oxynitride
- raw material
- melting
- 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 51
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 150000004767 nitrides Chemical class 0.000 claims abstract description 7
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000010436 fluorite Substances 0.000 claims abstract description 5
- 229910001610 cryolite Inorganic materials 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims description 20
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 8
- 125000001153 fluoro group Chemical group F* 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- -1 phosphomica Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 150000002222 fluorine compounds Chemical class 0.000 abstract description 3
- 239000007858 starting material Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052629 lepidolite Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000835 fiber Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000001000 micrograph Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000075 oxide glass Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003754 fetus Anatomy 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
本発明は気泡の含有量が極めて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 the Invention The present invention relates to an oxynitride glass having an extremely low bubble content 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て置換された構造を有し、酸化物
ガラスより結合が多く、高い弾性率と高い硬度を有する
。このため、強化材として、例えばプラスチック１．セ
メントなどの成型用として好ましい物性を有する。Conventional technology and its challenges 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. . For this reason, as a reinforcing material, for example, plastic 1. It has physical properties suitable for molding cement, etc.
従来、これらのオキシナイトライドガラスは、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Ｎ Ｈ３ガス処理などにより製造されている。Traditionally, these oxynitride glasses have been produced using the melting method,
It is manufactured by the sol-gel method, N gas blowing method, and NH3 gas treatment of porous glass.
このうち溶融法によりオキシナイトライドガラスを製造
するには、あらかじめ酸化物原料を溶融あるいは焼結後
粉砕し、これに窒化物原料を加え溶融する方法、あるい
は窒化物を含む総てのガラス原料を混合し、不活性雰囲
気中で直接溶融する方法などがある。In order to produce oxynitride glass by the melting method, the oxide raw material is first melted or sintered and then pulverized, and the nitride raw material is added to this and melted, or all the glass raw materials containing nitrides are melted. Methods include mixing and directly melting in an inert atmosphere.
しかしながら、このような従来の溶融法ではガラス中に
多くの気泡を有し、ガラスの透明性が低下したり、また
ガラスを繊維化した場合、繊維の強度の低下を招く。こ
のようなガラス中の気泡は溶融条件、原料組成を種々変
更しても解消されな本発明の目的は、内部に気泡のない
オキシナイトライドガラスを提供すると共にかかるガラ
スの製造法を提供することにある。However, such conventional melting methods have many bubbles in the glass, resulting in a decrease in the transparency of the glass and, when the glass is made into fibers, a decrease in the strength of the fibers. Such air bubbles in glass cannot be eliminated even if the melting conditions and raw material composition are variously changed.The object of the present invention is to provide an oxynitride glass without air bubbles inside, and to provide a method for producing such glass. It is in.
課題を解決するための手段
本発明はｏ、ｏｏｉ〜２．０重量％のフッ素原子を含有
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 o, ooi to 2.0% by weight of fluorine atoms, and a method for producing the same.
本発明のオキシナイトライドガラスは従来のものと異な
り内部の気泡が極めて少ない。The oxynitride glass of the present invention has extremely few internal air bubbles, unlike conventional glass.
オキシナイトライドガラス原料である５ｉｓＮ４に不可
避的不純物として含まれているＦｅｔｏｓは該ガラスの
気泡の発生に深くかかわっている。すなわち、高温溶融
下ではＰｅ、０３→ＦｅＯの還元反応がおこり、これに
伴う５ｉｓＮ４の酸化分解によりガラス中に気泡が発生
すると考えられる。フッ化物は原料中のＦｅとＦ ｅＦ
ｓ”’のような安定な錯体を形成するため５ｉｓＮａ
の分解による気泡の発生を防ぐものと考えられる。Fetos, which is contained as an unavoidable impurity in 5isN4, which is a raw material for oxynitride glass, is deeply involved in the generation of bubbles in the glass. That is, it is thought that under high-temperature melting, a reduction reaction of Pe, 03→FeO occurs, and bubbles are generated in the glass due to the accompanying oxidative decomposition of 5isN4. Fluoride is Fe and FeF in the raw materials
5isNa to form stable complexes such as s''
This is thought to prevent the generation of bubbles due to the decomposition of .
従来、一般の酸化物ガラスにおいても添加剤としてフッ
化物を用いることがあるが、これは溶融促進剤の役割を
果たし、またＳｉｎ、ガスを生成して、このガスのバブ
リング効果により１０’０μＲ以上の比較的大きな泡を
同伴して脱泡を行うものである。したがって、窒化物を
含むオキシナイトライドガラスの系において該窒化物の
分解を防止する本発明のフッ化物とはその機能が異なる
。従来、本発明のようなガラス系においてフッ化物が消
泡効果を有することを開示、示唆する報告はない。Conventionally, fluoride is sometimes used as an additive in general oxide glasses, but this plays the role of a melting accelerator, and also produces Sin gas, and due to the bubbling effect of this gas, the fluoride This method performs defoaming while entraining relatively large bubbles. Therefore, its function is different from that of the fluoride of the present invention, which prevents the decomposition of nitrides in nitride-containing oxynitride glass systems. Conventionally, there has been no report disclosing or suggesting that fluoride has an antifoaming effect in a glass system like the one used in the present invention.
本発明オキシナイトライドガラスの代表的な組成として
は、Ｃａ−８ｉ−Ａ１２−０−ＮＳＮａ−Ｃａ−Ｓｉ−
０−Ｎ、 Ｌａ−８ｉ−Ａｆ２−０−Ｎ、 ＮａＢ−９
ｉ−０−Ｎ、 Ｍｇ−９ｉ−Ａ［−０−Ｎ、 ５ｉ−Ａ
ｅ−０−Ｎ、 Ｙ−ＡＱ−Ｓｉ−０−Ｎ、 Ｎａ−Ｂ−
Ａ１２−Ｐ−０−Ｎなどが挙げられる。A typical composition of the oxynitride glass of the present invention is Ca-8i-A12-0-NSNa-Ca-Si-
0-N, La-8i-Af2-0-N, NaB-9
i-0-N, Mg-9i-A[-0-N, 5i-A
e-0-N, Y-AQ-Si-0-N, Na-B-
Examples include A12-P-0-N.
かかるオキシナイトライドガラスの特に好ましい組成と
しては、例えばＳｉ Ｍｌ Ｍｔ ＯＮ系を有す
るオキシナイトライドガラスであって、Ｓｉｎ、、５１
ｓＮ４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
ｌ５ＳｒＳＩ、ａ、Ｂａ、Ｙ、Ｔｉ、Ｚｒ、Ｃｅ５Ｎａ
ＳＫ、Ｓｂ、Ｂ５Ｃｒ％Ｐｂ、ＶおよびＳｎからなる群
より選ばれた１種または２Ｎ以上の金属を意味する。］
を満足する量含有するオキシナイトライドガラス繊維が
挙げられる。該ガラスはＳｉｎ、０〜４０モル％、Ｃａ
０２６〜７０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。A particularly preferable composition of such an oxynitride glass is, for example, an oxynitride glass having a Si Ml Mt ON system, wherein Sin, 51
sN4 and M, o in mol % by the following formula: % formula %) () () [In the formula, M is Ca or Ca + Mg, M is A
l5SrSI, a, Ba, Y, Ti, Zr, Ce5Na
It means one or more metals selected from the group consisting of SK, Sb, B5Cr%Pb, V and Sn. ] Examples include oxynitride glass fibers containing an amount satisfying the following. The glass contains Sin, 0 to 40 mol%, Ca
026-70 mol%, MgO 0-20 mol% and M,
It is preferable that the content is 22 atomic % or less. 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.
本発明のフッ素原子を含有するオキシナイトライドガラ
スは内部に気泡がなく、繊維化した場合、従来のオキシ
ナイトライドガラスに比べても一層高い弾性率を示す。The fluorine atom-containing oxynitride glass of the present invention has no internal bubbles, and when it is made into fibers, it exhibits a higher elastic modulus than conventional oxynitride glasses.
ガラス中のフッ素原子の含有量はｏ、ｏｏｉ〜２重量％
である。フッ素の含有量が０．００１重量％より少ない
と気泡の発生を抑制する効果がなく、一方２重量％を越
えるとをガラスに結晶があられれ失透する。The content of fluorine atoms in glass is o, ooi ~ 2% by weight
It is. When the fluorine content is less than 0.001% by weight, there is no effect of suppressing the generation of bubbles, while when it exceeds 2% by weight, crystals form on the glass and devitrification occurs.
本発明のオキシナイトライドガラスを製造するには、原
料粉末を溶融するにあたり、製品ガラス中のフッ素原子
の含有量が０．００１〜２．０重量％となるようフッ化
物原料を加えて従来法と同様、不活性雰囲気中１４００
〜１９５０’Ｃにて溶融を行う。かかるフッ化物として
は、蛍石（Ｃａｂｓ）、氷晶石（Ｎａ＊ＡＱ Ｆ ｅ）
、リン雲母（ＬｉＦ−ＫＦ・Ａ（ｂｏｓ・３ Ｓ １ｏ
ｎ）、ケイフッ化ソーダ（Ｎ ａｔ Ｓ ｉＦ、）など
が用いられる。またこれらは併用してもよい。In order to produce the oxynitride glass of the present invention, when melting the raw material powder, a fluoride raw material is added so that the content of fluorine atoms in the product glass is 0.001 to 2.0% by weight. 1400 in an inert atmosphere as well as
Melting is carried out at ~1950'C. Such fluorides include fluorite (Cabs) and cryolite (Na*AQ Fe).
, phosphomica (LiF-KF・A(bos・3 S 1o
n), sodium silicofluoride (N at SiF, ), etc. are used. Moreover, these may be used together.
企１
フッ化物を加えることにより５ｔｓＮ＋原料に不純物と
して含まれるＦｅｔｕｓがフッ素と錯化合物を形成する
結果、気泡の発生かなくなり、またガラス溶融原料の粘
度が低下して脱泡も容易となり気泡の残留がなくなった
。Project 1 By adding fluoride, Fetus, which is included as an impurity in the 5tsN+ raw material, forms a complex compound with fluorine, which eliminates the generation of bubbles, and also reduces the viscosity of the glass melting raw material, making defoaming easier and preventing bubbles from remaining. is gone.
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 explained in more detail based on Examples and Comparative Examples.
比較例１
オキシナイトライドガラス原料［ＳｉＯ＊８．６％、Ｓ
ｉ、Ｎ、１９．４％、Ａｌ１．０．５．２％、Ｃａ０５
９．８％、Ｍｇ０ ６．９％、（％はいずれもモル％）
］を秤量、混合した。原料中、Ｆｅ＊ＯｓはＯ１１重量
％含まれていた。これを底面にノズルを有するＭｏ製ル
ツボに入れ、１７８０℃にてＩ時間溶融した。得られた
ガラスは第１図に示す顕微鏡写真のごとく、ガラス中に
直径１〜ＩＯμ×の気泡が多数存在した。Comparative Example 1 Oxynitride glass raw material [SiO*8.6%, S
i, N, 19.4%, Al1.0.5.2%, Ca05
9.8%, Mg0 6.9%, (% is mol%)
] were weighed and mixed. In the raw material, Fe*Os was contained in an amount of 11% by weight. This was placed in a Mo crucible with a nozzle on the bottom and melted at 1780° C. for I hour. As shown in the micrograph shown in FIG. 1, the obtained glass contained many bubbles with a diameter of 1 to IOμ.
実施例１
比較例１の原料にさらに蛍石（ＣａＦＪを０．１重量％
（フッ素原子０１０５重量％）添加し、比較例１と同一
の条件で溶融しガラスを得た。得られたガラスは第２図
の顕微鏡写真に示すごとく気泡が認められない。Example 1 0.1% by weight of fluorite (CaFJ) was added to the raw material of Comparative Example 1.
(0.105% by weight of fluorine atoms) was added and melted under the same conditions as in Comparative Example 1 to obtain glass. As shown in the micrograph of FIG. 2, no air bubbles were observed in the obtained glass.
比較例２
Ｆｅ＊Ｏｓを０．３重量％含有する以外、比較例１と同
様の原料組成で溶融を行いガラスを得た。得られたガラ
スは第３図に示すごとく、比較例１よりもさらに多くの
気泡を含んでいた。Comparative Example 2 Glass was obtained by melting the same raw material composition as in Comparative Example 1 except that it contained 0.3% by weight of Fe*Os. As shown in FIG. 3, the obtained glass contained even more bubbles than Comparative Example 1.
実施例２
比較例２の原料にさらに蛍石０．１重量％（フッ素原子
０．０５重量％）を添加して比較例１と同じ条件で溶融
しガラスを得た。得られたガラスは第４図に示す顕微鏡
写真のごとく比較例３で見られた気泡が著しく減少した
。Example 2 0.1% by weight of fluorite (0.05% by weight of fluorine atoms) was further added to the raw material of Comparative Example 2 and melted under the same conditions as Comparative Example 1 to obtain glass. In the obtained glass, as shown in the micrograph shown in FIG. 4, the bubbles observed in Comparative Example 3 were significantly reduced.
実施例３
比較例１の原料にケイフッ化ソーダ（Ｎａ＊５ｉＰＩ）
０．１重量％（フッ素原子０．６重量％）を添加し、比
較例１と同じ条件で溶融した。得られたガラスは第５図
に示す顕微鏡写真のごとく気泡を含んでいなかった。Example 3 Sodium silicofluoride (Na*5iPI) was used as the raw material for Comparative Example 1.
0.1% by weight (0.6% by weight of fluorine atoms) was added and melted under the same conditions as Comparative Example 1. The obtained glass contained no air bubbles as shown in the micrograph shown in FIG.
実施例４
前記実施例１．２．３および比較例１，２にて得られた
オキシナイトライドガラスを１５７０℃にて紡糸し直径
１８μ度の繊維を得た。得られた繊維の強度を測定（Ｊ
ＩＳＲ７６０１
試験法）した結果を次に示す
試験Ｎｏ、 強度（ｋｇ／ｍｓ”）比較例 ｌ
１４０
実施例 【 ２１Ｏ
比較例２ ９０
実施例２ ２１Ｏ
実施例３ １７０
炭素繊維
発明の効果
本発明のオキシナイトライドガラスは、内部に気泡を含
まず、繊維化した場合も高い強度が得られる。また、原
料中の不純物による品質の低下がなくなり安価な原料を
使用することが可能となった。Example 4 The oxynitride glasses obtained in Examples 1.2.3 and Comparative Examples 1 and 2 were spun at 1570° C. to obtain fibers with a diameter of 18 μm. Measure the strength of the obtained fibers (J
ISR7601 Test Method) Results are shown below, Test No. Strength (kg/ms") Comparative Example l
140 Examples [21O Comparative Example 2 90 Example 2 21O Example 3 170 Effects of the Carbon Fiber Invention The oxynitride glass of the present invention does not contain air bubbles inside, and even when it is made into fibers, high strength can be obtained. In addition, it has become possible to use inexpensive raw materials without deterioration in quality due to impurities in the raw materials.
第１図および第３図は従来のオキシナイトライドガラス
の構造を示す顕微鏡写真（１００倍）、第２．４および
５図は本発明のオキシナイトライドガラスの構造を禾オ
！ＩＩＩ渦鰺宝貞（１００終）で木本−第２ 図
第２図
第３図
第５
図
平成
１年１２月２２日Figures 1 and 3 are micrographs (100x magnification) showing the structure of conventional oxynitride glass, and Figures 2.4 and 5 show the structure of the oxynitride glass of the present invention. III Uzuwari Hosada (end of 100) and Kimoto - Figure 2 Figure 2 Figure 3 Figure 5 December 22, 1999
Claims (2)
ることを特徴とするオキシナイトライドガラス。(1) Oxynitride glass characterized by containing 0.001 to 2.0% by weight of fluorine atoms.
キシナイトライドガラスを製造するにあたり、該原料に
蛍石、氷晶石、リン雲母、ケイフッ化ソーダからなる群
より選ばれた１種以上のフッ化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 material is one selected from the group consisting of fluorite, cryolite, phosphomica, and sodium silicofluoride. A method for producing oxynitride glass characterized by adding the above fluoride and melting it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19708389A JPH0360439A (en) | 1989-07-28 | 1989-07-28 | Oxynitride glass and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19708389A JPH0360439A (en) | 1989-07-28 | 1989-07-28 | Oxynitride glass and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0360439A true JPH0360439A (en) | 1991-03-15 |
Family
ID=16368440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19708389A Pending JPH0360439A (en) | 1989-07-28 | 1989-07-28 | Oxynitride glass and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0360439A (en) |
-
1989
- 1989-07-28 JP JP19708389A patent/JPH0360439A/en active Pending
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