Robust urethane-bridged silica aerogels available for water-carved aerosculptures

2017 ◽  
Vol 41 (5) ◽  
pp. 1953-1958 ◽  
Author(s):  
Yulu Zhang ◽  
Jin Wang ◽  
Yong Wei ◽  
Xuetong Zhang
Keyword(s):  
Silica Aerogels

Novel in situ bridged silica precursors were used to synthesize robust aerogels for aerosculptures carved with aqueous solvents.

In situ preparation of Ni nanoparticles in cerium-modified silica aerogels for coking- and sintering-resistant dry reforming of methane

2017 ◽  
Vol 41 (12) ◽  
pp. 4869-4878 ◽  
Author(s):  
Xiaoyuan Zhao ◽  
Meirong Lu ◽  
Hongrui Li ◽  
Jianhui Fang ◽  
Liyi Shi ◽  
...  
Keyword(s):  
Silica Aerogels ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Ni Nanoparticles ◽  
Modified Silica ◽  
In Situ Preparation

Ni nanoparticles in nanochannels of cerium-modified silica aerogels were in situ prepared for coking-resistant dry reforming of methane.

scholarly journals SANS study of hybrid silica aerogels under “in situ” uniaxial compression

2008 ◽  
Vol 45 (3) ◽  
pp. 245-250 ◽  
Author(s):  
N. de la Rosa-Fox ◽  
V. Morales-Flórez ◽  
J. A. Toledo-Fernández ◽  
M. Piñero ◽  
L. Esquivias ◽  
...  
Keyword(s):  
Uniaxial Compression ◽  
Silica Aerogels ◽  
Hybrid Silica

In Situ Optical Determination of Fraction Solid of Al-Si-Mg Alloys

2006 ◽  
Vol 508 ◽  
pp. 491-496 ◽  
Author(s):  
Sonja Steinbach ◽  
Lorenz Ratke
Keyword(s):  
Near Infrared ◽  
Silica Aerogels ◽  
Optical Technique ◽  
Lever Rule ◽  
Time Profiles ◽  
Fraction Solid ◽  
Optically Transparent ◽  
Optical Determination

In this paper we report on a new optical technique to measure in situ the fraction solid during solidification. The technique utilizes the extreme properties of silica aerogels, being optically transparent in the visible and near infrared. From measured brightness time profiles the fraction solid can be derived using a suitable theoretical approach. The technique is tested on a technical AlSiMg alloy (A357) solidified directionally in the furnace facility Artemis. The results are compared with the well known theoretical expressions of the lever rule and the Scheil relation. The measured fraction solid as a function of temperature agrees well with model of Scheil which shows the capabilities of the new technique.

Nanostructure evolution of silica aerogels under rapid heating from 600 °C to 1300 °C via in-situ TEM observation

2020 ◽  
Vol 46 (8) ◽  
pp. 12489-12498
Author(s):  
Huafei Cai ◽  
Yonggang Jiang ◽  
Jian Feng ◽  
Qu Chen ◽  
Sizhao Zhang ◽  
...  
Keyword(s):  
Rapid Heating ◽  
Silica Aerogels ◽  
In Situ Tem

scholarly journals Morphology control of nickel nanoparticles prepared in situ within silica aerogels produced by novel ambient pressure drying

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jialu Lu ◽  
Jiabin Wang ◽  
Khalil T. Hassan ◽  
Alina Talmantaite ◽  
Zhengguang Xiao ◽  
...  
Keyword(s):  
Nickel Nanoparticles ◽  
Ambient Pressure ◽  
Morphology Control ◽  
Silica Aerogels ◽  
Ambient Pressure Drying
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