摘要:
A process for preparing aluminosilicate glass comprising from 30 to 60 molar % of SiO.sub.2, from 20 to 35 molar % of Al.sub.2 O.sub.3 and from 10 to 30 molar % of a total of rare earth oxides composed mainly of Y.sub.2 O.sub.3, wherein an yttrium concentrate is used as the rare earth oxides composed mainly of Y.sub.2 O.sub.3, and ZrO.sub.2 not in excess of 8 molar % to improve alkali resistance.
摘要翻译:一种制备铝硅酸盐玻璃的方法,其包含SiO 2为30至60摩尔%,Al 2 O 3为20至35摩尔%和主要由Y 2 O 3组成的稀土氧化物的10至30摩尔%,其中使用钇浓缩物作为 主要由Y2O3和ZrO2组成的稀土氧化物不超过8摩尔%,以提高耐碱性。
摘要:
A diagnostic system for carcinogenicity diagnoses a risk of developing cancer due to a radioactive material deposited in a human body. The system includes a detecting apparatus that detects radiations emitted from the radioactive material; and a determining apparatus that obtains a dose of the radiations detected by the detecting apparatus and determines the risk based on the dose.
摘要:
A computer-aided class composition design apparatus includes a memory device having stored therein glass component compound data and glass physical property data. A display device is used for initially displaying a plurality of glass component compounds from among the glass component compound data. Using an input device, a glass composition is selected from among the displayed glass components. The glass physical property data is processed to approximate at least one physical property of the selected glass composition. Alternately, the glass physical properties themselves are displayed and values assigned thereto, and the component compound data and glass physical property data are processed to obtain a glass composition having approximated physical property values in accordance with the selected physical property values.
摘要:
A process for producing a machinable crystallized glass having needle-like crystals precipitated therein, which comprises melting a mixture comprising from 40 to 60 mol % of SiO.sub.2, from 6 to 16 mol % of Al.sub.2 O.sub.3, from 6 to 16 mol % of Y.sub.2 O.sub.3 and from 15 to 30 mol % of CaO, and allowing the melt to cool to have fine needle-like crystals of Ca.sub.4 Y.sub.6 O(SiO.sub.4).sub.6 precipitated.
摘要翻译:一种在其中析出针状结晶的可机加工的结晶玻璃的制造方法,其特征在于,将包含40〜60摩尔%的SiO 2,6〜16摩尔%的Al 2 O 3,6〜16摩尔%的Y 2 O 3和 15〜30摩尔%的CaO,使熔融液冷却,使细小的Ca4Y6O(SiO4)6的针状结晶析出。
摘要:
A functional organic-inorganic composite amorphous material obtained by adding to an organic metal compound of silicon or germanium capable of being made amorphous by hydrolysis and dehydrating condensation, functional organic molecules soluble in a solvent capable of dissolving said organic metal compound, together with the solvent, followed by hydrolysis and dehydrating condensation to form an integrated composite.