摘要:
An object of the present invention is to provide a Li2O—Al2O3—SiO2 based crystallized glass with excellent bubble quality even without using As2O3 or Sb2O3 as a fining agent and a method for producing the same. The Li2O—Al2O3—SiO2 based crystallized glass of the present invention is a Li2O—Al2O3—SiO2 based crystallized glass which does not substantially comprise As2O3 and Sb2O3 and comprises at least one of Cl, CeO2 and SnO2, and has a S content of not more than 10 ppm in terms of SO3.
摘要翻译:本发明的目的是提供即使不使用As2O3或Sb2O3作为澄清剂的具有优异气泡质量的Li 2 O-Al 2 O 3 -SiO 2系结晶玻璃及其制造方法。 本发明的Li 2 O-Al 2 O 3 -SiO 2类结晶化玻璃是Li 2 O-Al 2 O 3 -2Si 2系结晶化玻璃,其基本上不包含As 2 O 3和Sb 2 O 3,并且包含Cl,CeO 2和SnO 2中的至少一种,并且S含量不是 以SO 3计超过10ppm。
摘要:
An object of the present invention is to provide a Li2O—Al2O3—SiO2 based crystallized glass with excellent bubble quality even without using As2O3 or Sb2O3 as a fining agent and a method for producing the same. The Li2O—Al2O3—SiO2 based crystallized glass of the present invention is a Li2O—Al2O3—SiO2 based crystallized glass which does not substantially comprise As2O3 and Sb2O3 and comprises at least one of Cl, CeO2 and SnO2, and has a S content of not more than 10 ppm in terms of SO3.
摘要:
Provided is a Li2O—Al2O3—SiO2-based crystallizable glass characterized by comprising, as a glass composition in terms of mass %, 55 to 75% of SiO2, 19 to 24% of Al2O3, 3 to 4% of Li2O, 1.5 to 2.8% of TiO2, 3.8 to 4.8% of TiO2+ZrO2, and 0.1 to 0.5% of SnO2, and satisfying a relationship of 4≦Li2O+0.741MgO+0.367ZnO≦4.5.
摘要:
Provided is a Li2O—Al2O3—SiO2-based crystallized glass, comprising, as a composition in terms of mass %, 55 to 75% of SiO2, 20.5 to 27% of Al2O3, 2% or more of Li2O, 1.5 to 3% of TiO2, 3.8 to 5% of TiO2+ZrO2, and 0.1 to 0.5% of SnO2, and satisfying the relationships of 3.7≦Li2O+0.741MgO+0.367ZnO≦4.5 and SrO+1.847CaO≦0.5.
摘要翻译:本发明提供一种Li2O-Al2O3-SiO2系微晶玻璃,其以质量%计含有SiO 2 55〜75%,Al 2 O 3 20.5〜27%,Li 2 2%以上Li 2 O,1.5〜3% TiO 2,3.8〜5%的TiO 2 + ZrO 2和0.1〜0.5%的SnO 2,满足3.7 @ Li 2 O + 0.741MgO + 0.367ZnO 4.5和SrO + 1.847CaO + 0.5的关系。
摘要:
Provided is a Li2O—Al2O3—SiO2-based crystallized glass, comprising, as a composition in terms of mass %, 55 to 75% of SiO2, 20.5 to 27% of Al2O3, 2% or more of Li2O, 1.5 to 3% of TiO2, 3.8 to 5% of TiO2+ZrO2, and 0.1 to 0.5% of SnO2, and satisfying the relationships of 3.7≦Li2O+0.741MgO+0.367ZnO≦4.5 and SrO+1.847CaO≦0.5.
摘要翻译:本发明提供一种Li2O-Al2O3-SiO2系微晶玻璃,其以质量%计含有SiO 2 55〜75%,Al 2 O 3 20.5〜27%,Li 2 2%以上Li 2 O,1.5〜3% TiO 2,3.8〜5%的TiO 2 + ZrO 2和0.1〜0.5%的SnO 2,满足3.7≦̸ Li 2 O + 0.741MgO + 0.367ZnO≦̸ 4.5和SrO + 1.847CaO≦̸ 0.5的关系。
摘要:
A crystallized glass comprises, in term of mass %, 55 to 73% of SiO2, 17 to 25% of Al2O3, 2 to 5% of Li2O, 4 to 5.5% of TiO2, 0.05 to less than 0.2% of SnO2, and 0.02 to 0.1% of V2O5. The crystallized glass has a ratio V2O5/(SnO2+V2O5) of 0.2 to 0.4 and is substantially free of As2O3 and Sb2O3.
摘要翻译:结晶化玻璃的质量%为55〜73%的SiO 2,17〜25%的Al 2 O 3,2〜5%的Li 2 O,4〜5.5重量%的TiO 2,0.05〜0.2重量%的SnO 2和0.02 至0.1%的V2O5。 结晶化玻璃的V 2 O 5 /(SnO 2 + V 2 O 5)的比例为0.2〜0.4,并且基本上不含As 2 O 3和Sb 2 O 3。
摘要:
Boron carbide ceramics produced by spark sintering methods have more desirable mechanical properties than conventionally produced carbides. The boron carbide ceramics include amorphous boron, amorphous carbon, and Al2O3 powder as a sintering aid. The boron carbides may also contain a carbon nano fiber in a nearly homogeneously dispersed state. The sintered compact has a relative density of a boron carbide ceramic of approximately not less than 99%. The boron carbide ceramics are prepared preferably by subjecting a mixed powder of the starting raw materials and the carbon nano fiber to simultaneous synthesis and sintering using the spark plasma sintering method.
摘要翻译:通过火花烧结法生产的碳化硼陶瓷具有比常规生产的碳化物更理想的机械性能。 碳化硼陶瓷包括无定形硼,无定形碳和作为烧结助剂的Al 2 O 3粉末。 碳化硼也可以含有几乎均匀分散状态的碳纳米纤维。 烧结体的碳化硼陶瓷的相对密度约为99%以上。 优选通过使用放电等离子体烧结法使起始原料和碳纳米纤维的混合粉末同时进行合成和烧结来制备碳化硼陶瓷。
摘要:
Provided is crystallized glass, comprising, as a glass composition in terms of mass %, 55 to 73% of SiO2, 17 to 25% of Al2O3, 2 to 5% of Li2O, 2.5 to 5.5% of TiO2, 0 to 2.3% of ZrO2, 0.2 to 0.9% of SnO2, and 0.005 to 0.09% of V2O5, wherein the crystallized glass is substantially free of As2O3 and Sb2O3.
摘要翻译:作为玻璃组合物,以质量%计,SiO 2为55〜73%,Al 2 O 3为17〜25%,Li 2为2〜5重量%,TiO 2为2.5〜5.5重量%,TiO 2为0〜2.3重量% ZrO 2,0.2〜0.9%的SnO 2和0.005〜0.09%的V 2 O 5,其中结晶化玻璃基本上不含As 2 O 3和Sb 2 O 3。
摘要:
To provide crystallizable glass that is less likely to be devitrified even when formed into shape by a float process, causes no breakage during a forming step and a crystallization step and is capable of precipitating LAS-based crystals as main crystals by subjecting the glass to heat treatment after being formed into shape, and crystallized glass obtained by crystallizing the crystallizable glass. The crystallizable glass of the present invention is characterized by substantially containing neither As2O3 nor Sb2O3 and having a composition of, in percent by mass, 55.0 to 73.0% SiO2, 17.0 to 27.0% Al2O3, 2.0 to 5.0% Li2O, 0 to 1.5% MgO, 0 to 1.5% ZnO, 0 to 1.0% Na2O, 0 to 1.0% K2O, 0 to 3.8% TiO2, 0 to 2.5% ZrO2, 0 to 0.6% SnO2, and 2.3 to 3.8% TiO2+ZrO2.
摘要:
Boron carbide ceramics produced by spark sintering methods have more desirable mechanical properties than conventionally produced carbides. The boron carbide ceramics include amorphous boron, amorphous carbon, and Al2O3 powder as a sintering aid. The boron carbides may also contain a carbon nano fiber in a nearly homogeneously dispersed state. The sintered compact has a relative density of a boron carbide ceramic of approximately not less than 99%. The boron carbide ceramics are prepared preferably by subjecting a mixed powder of the starting raw materials and the carbon nano fiber to simultaneous synthesis and sintering using the spark plasma sintering method.
摘要翻译:通过火花烧结法生产的碳化硼陶瓷具有比常规生产的碳化物更理想的机械性能。 碳化硼陶瓷包括无定形硼,无定形碳和作为烧结助剂的Al 2 O 3粉末。 碳化硼也可以含有几乎均匀分散状态的碳纳米纤维。 烧结体的碳化硼陶瓷的相对密度约为99%以上。 优选通过使用放电等离子体烧结法使起始原料和碳纳米纤维的混合粉末同时进行合成和烧结来制备碳化硼陶瓷。