摘要:
In the production of an organic-inorganic hybrid glassy material using raw materials which are used in a sol-gel process as starting materials, the present invention relates to a process for producing an organic-inorganic hybrid glassy material, which is characterized in that, there is a heating reaction step between a mixing step and a melting step of the starting materials and there is further an aging step after the melting step. In accordance with the present invention, an organic-inorganic hybrid glassy material satisfying both heat resistance as well as airtight property and low-melting characteristic, which has been believed to be very difficult to produce, is now able to be produced in a very shorter period than before.
摘要:
Disclosed is an organic-inorganic hybrid glassy material characterized in that change of Abbe number does not exceed 1.5 in a temperature range of 20-150° C. (a difference between the maximum value and the minimum value is 1.5 or less). This organic-inorganic hybrid glassy material may have a characteristic that transmittance in a wavelength range of 300-800 nm is not lowered by 5% or greater to a laser light irradiation of a wavelength of 330-380 nm.
摘要:
In the production of an organic-inorganic hybrid glassy material using raw materials which are used in a sol-gel process as starting materials, the present invention relates to a process for producing an organic-inorganic hybrid glassy material, which is characterized in that, there is a heating reaction step between a mixing step and a melting step of the starting materials and there is further an aging step after the melting step. In accordance with the present invention, an organic-inorganic hybrid glassy material satisfying both heat resistance as well as airtight property and low-melting characteristic, which has been believed to be very difficult to produce, is now able to be produced in a very shorter period than before.
摘要:
In a production process of an organic-inorganic hybrid glassy material, the invention relates to a process for producing an organic-inorganic hybrid glassy material, characterized in that the process comprises at least the three steps of producing a gel body by a sol-gel method; melting by heating; and aging, and it relates to an organic-inorganic hybrid glassy material produced by this process.
摘要:
In a production process of an organic-inorganic hybrid glassy material, the invention relates to a process for producing an organic-inorganic hybrid glassy material, characterized in that the process comprises at least the three steps of producing a gel body by a sol-gel method; melting by heating; and aging, and it relates to an organic-inorganic hybrid glassy material produced by this process.
摘要:
There is provided a process for producing an organic-inorganic hybrid glassy material, including the sequential steps of (a) concentrating a starting sol of an organic-inorganic hybrid glassy material, thereby yielding a precursor material having meltability; (b) melting the precursor material; (c) subjecting a product of the step (b) to a heating treatment under reduced pressure; and (d) subjecting a product of the step (c) to a high-temperature heat treatment at 300° C. or higher.
摘要:
There is provided a process for producing an organic-inorganic hybrid glassy material, including the sequential steps of (a) concentrating a starting sol of an organic-inorganic hybrid glassy material, thereby yielding a precursor material having meltability; (b) melting the precursor material; (c) subjecting a product of the step (b) to a heating treatment under reduced pressure; and (d) subjecting a product of the step (c) to a high-temperature heat treatment at 300° C. or higher.
摘要:
To provide a honeycomb carrier to support a catalyst to clean e.g. an exhaust gas of an automobile particularly containing NOx, which is excellent in heat resistance, thermal shock resistance, mechanical strength and thermal decomposition resistance and has a great corrosion resistance to a catalyst, and is thus capable of being used with stability for a long period of time, and a process for its production. The material for the honeycomb carrier is an aluminum magnesium titanate sintered product obtained by firing at from 1,000 to 1,700° C. a molded product formed from a raw material mixture comprising 100 parts by mass, as calculated as oxides, of a mixture comprising a Mg— containing compound, an Al-containing compound and a Ti— containing compound in the same metal component ratio as the metal component ratio of Mg, Al and Ti in an aluminum magnesium titanate represented by the empirical formula MgxAl2(1+x)Ti(1+x)O5 (wherein 0
摘要:
To provide an aluminum magnesium titanate crystal structure which can be used stably in variable high temperatures, because of its excellent heat resistance, thermal shock resistance, high thermal decomposition resistance and high mechanical property, and a process for its production. An aluminum magnesium titanate crystal structure, which is a solid solution wherein at least some of Al atoms in the surface layer of aluminum magnesium titanate crystal represented by the empirical formula MgxAl2(1−x)Ti(1+x)O5 (wherein 0.1≦x
摘要翻译:由于其耐热性,耐热冲击性,高耐热分解性和高机械性能优异,因此可以稳定地在可变高温下使用的钛酸铝镁晶体结构体及其制造方法。 一种钛酸镁晶体结构,其是以经验式Mg x Al 2(1-x)表示的钛酸镁镁晶体的表面层中的至少一些Al原子的固溶体, x)Ti(1 + x)O 5(其中0.1 <= x <1)被Si原子取代,并且具有热膨胀系数 (1 / K)至6×10 -6(1 / K)的范围为50至800℃,温度升高 速度为20℃/分钟,钛酸镁镁的剩余比率为至少50%,当在1100℃的气氛中保持300小时时。
摘要:
To provide a honeycomb filter for cleaning exhaust gas, which is excellent in heat resistance and thermal shock resistance and has high thermal decomposition resistance and high mechanical strength and which is thus capable of being used with stability at high and fluctuating temperatures, and a process for its production. A honeycomb filter for removing fine solid particles containing carbon as the main component in an exhaust gas, characterized in that the material for the honeycomb filter is an aluminum magnesium titanate sintered product obtained by firing at from 1000 to 1700° C. a formed product from a mixture comprising a Mg-containing compound, an Al-containing compound and a Ti-containing compound in the same metal component ratio as the metal component ratio of Mg, Al and Ti in aluminum magnesium titanate represented by the empirical formula MgxAl2(1−x)Ti(1+x)O5 (wherein 0
摘要翻译:为了提供一种用于清洁排气的蜂窝过滤器,其耐热性和耐热冲击性优异,并且具有高耐热分解性和高机械强度,因此能够在高且波动的温度下稳定地使用, 其生产。 一种用于除去在废气中含有碳作为主要成分的微细固体颗粒的蜂窝过滤器,其特征在于,用于蜂窝过滤器的材料是通过在1000至1700℃下煅烧获得的成形产品, 以与经验式Mg所表示的钛酸镁镁中的Mg,Al和Ti的金属成分比例相同的金属成分比例含有含Mg化合物,含Al化合物和含Ti化合物的混合物, (1-x)Ti(1 + x)O 5(其中0 1-y)AlSi 3 O 8(其中0 <= y <= 1)。