Fabrication of mesoporous silica/polymer composites through solvent evaporation process and investigation of their excellent low thermal expansion property

2011 ◽  
Vol 13 (11) ◽  
pp. 4957 ◽  
Author(s):  
Norihiro Suzuki ◽  
Shosuke Kiba ◽  
Yusuke Yamauchi
Keyword(s):  
Thermal Expansion ◽  
Mesoporous Silica ◽  
Polymer Composites ◽  
Solvent Evaporation ◽  
Evaporation Process ◽  
Thermal Expansion Property ◽  
Expansion Property ◽  
Low Thermal Expansion ◽  
Solvent Evaporation Process

Mesoporous silica as smart inorganic filler: preparation of robust silicone rubber with low thermal expansion property

2011 ◽  
Vol 21 (14) ◽  
pp. 5338 ◽  
Author(s):  
Norihiro Suzuki ◽  
Shosuke Kiba ◽  
Yuichiro Kamachi ◽  
Nobuyoshi Miyamoto ◽  
Yusuke Yamauchi
Keyword(s):  
Thermal Expansion ◽  
Mesoporous Silica ◽  
Silicone Rubber ◽  
Inorganic Filler ◽  
Thermal Expansion Property ◽  
Expansion Property ◽  
Low Thermal Expansion

scholarly journals Substitutions of Zr4+/V5+ for Y3+/Mo6+ in Y2Mo3O12 for Less Hygroscopicity and Low Thermal Expansion Properties

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3945 ◽  
Author(s):  
Qiang Ma ◽  
Lulu Chen ◽  
Heng Qi ◽  
Qi Xu ◽  
Baohe Yuan ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thermal Expansion ◽  
Crystal Structures ◽  
Room Temperature ◽  
Crystal Water ◽  
Thermal Expansion Property ◽  
Expansion Property ◽  
Low Thermal Expansion ◽  
Substitution Content ◽  
Structure And Microstructure

In this investigation, ZrxY2−xVxMo3−xO12 (0 ≤ x ≤ 1.4) is developed and the effects of the substitutions of Zr4+/V5+ for Y3+/Mo6+ in Y2Mo3O12 on the hygroscopicity and thermal expansion property are investigated. For the smaller substitution content (x ≤ 0.5), their crystal structures remain orthorhombic, while there is crystal water still in the lattice. The linear coefficients of thermal expansions (CTEs), for x = 0.1, 0.3, 0.5, and 0.7, are about −4.30 × 10−6, −0.97 × 10−6, 0.85 × 10−6, and 0.77 × 10−6 K−1, respectively, from 476 to 773 K, which means that the linear CTE could be changed linearly with the substitution content of Zr4+/V5+ for Y3+/Mo6+ in Y2Mo3O12. As long as the substitution content reaches x = 1.3/1.4, almost no hygroscopicity and low thermal expansion from room temperature are obtained and are discussed in relation to the crystal structure and microstructure.

Study on Preparation of Low-Thermal Expansion Coefficient Concrete with Fly Ash

2014 ◽  
Vol 599 ◽  
pp. 89-92 ◽  
Author(s):  
Sha Ding ◽  
Zhong He Shui ◽  
Teng Pan ◽  
Wei Chen
Keyword(s):  
Thermal Expansion ◽  
Fly Ash ◽  
Pore Structure ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Cement Concrete ◽  
Thermal Expansion Property ◽  
Expansion Property ◽  
Low Thermal Expansion ◽  
Addition Level

The low-thermal expansion coefficient (CTE) of cement paste and concrete are designed and prepared with fly ash in this study. The thermal expansion property and pore structure of cement/concrete are tested by Thermal Dilatometer, MIP, and SEM. The test results show that the addition of fly ash lowers the thermal expansion rate and coefficient of hardened paste. The increase of addition level is accompanied by the decrease of the thermal expansion coefficient. The introduction of fly ash could improve the pore structure of concrete, thus improve the thermal expansion property of cement concrete.

Fabrication and Pore Size Control of Large-Pore Mesoporous Silica Particles through a Solvent Evaporation Process

Silicon ◽  
2011 ◽  
Vol 3 (3) ◽  
pp. 139-143 ◽  
Author(s):  
Hirobumi Shibata ◽  
Taku Ogura ◽  
Keishi Nishio ◽  
Hideki Sakai ◽  
Masahiko Abe ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Pore Size ◽  
Size Control ◽  
Silica Particles ◽  
Solvent Evaporation ◽  
Evaporation Process ◽  
Large Pore ◽  
Solvent Evaporation Process ◽  
Pore Size Control
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