细颈瓶
发表于 2025-4-1 03:06:54
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杠杆支点
发表于 2025-4-1 09:50:26
Analysis of the Microhardness and the Porosity in Graded Thermal Barrier Coatingsponents at very high temperature..In this paper we present a study on the relationship between the porosity and the microhardness in ZrO. — 8 wt% Y.O. thermal barrier coatings (TBC’s) prepared by atmospheric plasma spraying. in order to produce different porosities, with a variation along the cross
火车车轮
发表于 2025-4-1 12:57:15
Nanostructured Mesoporous Silica Filmse direct templating by liquid crystalline phases, surfactant concentrations in excess of 30 wt% in water are used. in the case of silicas and metallosilicates the materials are obtained as monolithic objects with typical dimensions greater than 5 mm. Here we report on the processing of thin films of