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玻璃相
    THE DISTRIBUTION OF B_2O_3 IN FUSED CAST AZS REFRACTORIES AND EFFECT OF B_2O_3 ON VISCOSITY OF GLASS PHASE AT HIGH TEMPERATURE
    B_2O_3在熔铸AZS材料中的分布及其对材料玻璃相高温粘度的影响
    On the glass phase in the melting AZS products
    熔铸AZS制品中玻璃相研究之思考
    The results show that the longest crack initiation life is 6100 cycles for the alumina ceramics sintered at 1450℃,in which the structure is composed of 30% glass phase and 70% crystal phase.
    结果表明,1450℃烧成的试样的疲劳裂纹萌生寿命最高,达到6100周,此时体系内玻璃相含量约为30%,晶相含量约为70%。 其中玻璃相含量的高低是决定氧化铝陶瓷疲劳特性的主要因素。
    The different were interpreted by superplastic forming mechanism of silicon nitride ceramics. The existence of glass phase can be also proved in the grain boundary during superplastic deformation.
    而高温断口上却几乎不存在这样的晶粒,这种不同可以用氮化硅陶瓷材料的超塑性变形机理来解释,也可以证明超塑性变形过程中晶界玻璃相的存在。
    The influence of oxidizing degree on exudation temperature of glass phase of FCAZS refractories
    FCAZS制品氧化程序对玻璃相析出温度的影响
    The addition of B2O3 has a bigger affection on property of sintering bodies than Al2O3. With increasing B2O3 content, more glass phase are appeared, which change dramatically the structure of the porosity and strength of the ceramic body. The same trend has been observed as respect to the variation of porosity and strength with increasing Al2O3 content, but the variation is more smoothly.
    B_2O_3的引入较Al_2O_3对烧结体的性能影响大,随B_2O_3含量增加,烧结体中玻璃相明显增多,显气孔率和抗压强度变化幅度较大,而随Al_2O_3含量增加,烧结体的显气孔率和抗压强度均呈缓慢变化趋势;
    The machanism described above is apparently different with the single physical machanism of poly-crystal Al_2O_3 ceramic which depends upon glass phase penetrating into crystal boundary, though it has no crystal boundary, it can also reach tight strong metallized sealing.
    它与多晶Al_2O_3瓷靠玻璃相渗透到晶界中的单纯物理机理有着明显的不同,因此,它虽无晶界,但同样能获得高强度高气密的金属化封接。
    The results indicate that the surface oxidation layer is constituted of cristobalite and a glass phase containig SiO2 with impurities such as A12O3 and CaO.
    结果表明,Si_3N_4陶瓷材料表面的氧化层,是由方石英相和含有Al_2O_3、CaO等杂质的SiO_2玻璃相所组成。
    The results indicate that the surface oxidation laver is constituted of cristobalite、ZrSiO_4 and a glass phase containing SiO_2 with impurities such as Al_2O_3 and CaO,The con-tents of these impurities increase with increasing oxidation time.
    结果表明,Si_3N_4-Al_2O_3-ZrO_2系陶瓷材料表面氧化层是由方石英相、ZrSiO_4相和含有Al_2O_3、CaO等的SiO_2玻璃相所组成,其中SiO_2玻璃相中Al_2O_3、CaO等的含量,随着氧化时间的增加而逐渐增加。
    The results indicate that the surface oxidation laver is constituted of cristobalite、ZrSiO_4 and a glass phase containing SiO_2 with impurities such as Al_2O_3 and CaO,The con-tents of these impurities increase with increasing oxidation time.
    结果表明,Si_3N_4-Al_2O_3-ZrO_2系陶瓷材料表面氧化层是由方石英相、ZrSiO_4相和含有Al_2O_3、CaO等的SiO_2玻璃相所组成,其中SiO_2玻璃相中Al_2O_3、CaO等的含量,随着氧化时间的增加而逐渐增加。
    The results show that the starting temperature of solid state reaction of low alkali glass is higher than that ofsoda-lime glass but the apperarance temperature of glass phase of low alkali glass approaches to that of soda-lime glass.
    结果表明低碱玻璃固相反应开始温度较高于钠钙玻璃,但玻璃相出现的温度接近于钠钙玻璃。
    In medium temperature sintered BaTiO 3 based ceramics containing Bi 2O 3·nTiO 2 and PbO B 2O 3 core shell structure is formed in BaTiO 3 main crystal phase grain and the glass phase exists through melt separation out and vacancy compensation solid solution of modifiers La, Nb and the others in sintering process of solid liquid phase.
    含低熔物Bi2O3·nTiO2及PbO-B2O3的BaTiO3基中温烧结瓷料,通过改性物La、Nb等在固-液相烧结过程中溶-析和缺位补偿固溶,主晶相BaTiO3晶粒形成核-壳结构,并存在玻璃相
    The existence of Mo5Si3 has the same effect onthe crystal growth and the rupture behavior as the shape and distribution of glass phase.
    Mo5Si3相的存在,玻璃相形状、分布均影响MoSi2晶粒的生长和断裂行为。
    The composition of glass phase in the grain boundary was varied in the course of oxidizing treatment, glass phase reacted with the surface composition of AlN to form the crossing structure of fibrous 2H δ Sialon and SiC whisker.
    氧化处理改变了粒界玻璃相的相组成,玻璃相与AlN颗粒发生作用,生成AlN多形体2HδSialon相,形成对材料有益的空间交错的结构。
    It is also found that 60%~70%(wt) SiO 2 content introduced by raw materials will form glass phase.
    研究发现 ,配料中引入的SiO2 成分约有 60 %~ 70 %进入玻璃相
    The results show that the lowest porosity of layer consisted of mullite and glass phase is 3.3%.
    结果表明,陶瓷层显微组织为莫来石和玻璃相基体,最低孔隙率为3.3% 。
    The results indicate that,while (30~40)% SiO 2 in the system is formed to forsterite(M 2S),the remaindering SiO 2 composition will get into glass phase,and the compositions of glass phase are very close to that of monticellite (CMS).
    结果表明 :系统中占 (3 0~ 40 ) %的 Si O2 成分与 Mg O反应形成镁橄榄石相 (M2 S) ,余下的 Si O2 成分将进入玻璃相 ,且玻璃相的组成与钙镁橄榄石的理论组成大致相当。
    SiO 2 additive can conduce to the formation of glass phase.
    SiO2 添加剂有助于玻璃相的形成。
    The porosity of ceramic layer consisted of α Al 2O 3 and glass phase is about 4%.
    陶瓷层由α Al2 O3 和基体玻璃相组成 ,孔隙度为 4%
    The density and inner surface smooothness of ceramic layer were improved significantly by expanding the solidifying time with glass phase formed from Na 2B 4O 7 additive.
    Na2 B4 O7添加剂形成了玻璃相 ,延长了陶瓷的熔融期 ,可显著改善陶瓷致密度和内表面光整度 ;
 

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