6 天之前 · In this paper, Al2O3–SiO2 aerogel was compounded with mullite fiber to prepare silicon–aluminum aerogel fiber felt. When the strain value reaches 30%, the compressive strength of the fiber felt with aerogel content of 50.1 wt % reaches 0.21 MPa, and the thermal conductivity of fiber felt decreases from 0.0425 to 0.0322 W/m K when the ...

莫来石（或莫乃石、Aluminum silicate）指的是一系列由铝硅酸盐组成的矿物统称，值得一提的是SiO2-Al2O3系是陶瓷中最重要的二元系，从1909年公布的第一张莫来石相图，陆续发表了十几张不同的相图，争论的焦点是就是中间相莫来石是稳定化合物还是非稳定化合物 ...

2 天之前 · Effect of Al 2 O 3 /SiO 2 ratio on yttrium aluminosilicate glass: Structure, thermal, mechanical, acid resistance properties

2020年10月8日 · To study the mechanical properties of Al2O3/SiO2 composites under high-temperature environment and after high-temperature treatment, the tensile strength and fracture behavior of it under high temperatures were investigated, and their flexural strength after heat treatment at various temperatures was also examined.

2020年6月24日 · The aim of this study was the synthesis and structural characterization of SiO2–Al2O3 microspheres with SiO2 core and (100 − x)Al2O3·xFe2O3 (x = 0, 5, and 10 mol%) shell. Smooth spherical silica particles of uniform size around 1 μm have been synthesized as core material based on the Stöber method.

2023年12月1日 · Al 2 O 3, as a network intermediate and one of the main chemical components of glass, may improve the mechanical strength and thermal stability of glass.

2016年1月1日 · We have developed a new sol–gel route to synthesize Al 2 O 3 –SiO 2 composite aerogel using inexpensive inorganic salt of aluminum. The approach, which is straightforward, inexpensive, and safe, can be employed to produce a monolithic mesoporous material with a high specific surface area, which is heat-treated at high temperatures.

2021年1月1日 · In this study, Al 2 O 3 –SiO 2 aerogel acting as secondary structure was introduced into the alumina frameworks for improving their catalyst supporting capacity. The alumina frameworks were prepared by dry-pressing method, which is simpler to perform than TBA-based gel-casting (a method used in the former work [16]).

2020年9月1日 · This study reports on a feasible formation of Al2O3–SiO2 composite ceramics using an electrostatic assembly technique without any use of pore former.

2022年8月16日 · 二氧化钛 (TiO 2 ) 的各种应用都需要进行表面改性，以抑制 TiO 2的光活性。在这项工作中，复合SiO 2 /Al 2 O 3薄膜通过脉冲化学气相沉积成功地沉积在TiO 2颗粒上。复合膜由4.17 nm SiO 2和1.62 nm Al 2 O 3非晶膜构成，特别致密和均匀。研究了涂覆TiO 2的光催化过程。SiO 2 /Al 2 O 3中载流子复合率的提高涂层TiO 2是 ...