Large-Scale Synthesis of Micrometer-Scale Single-Crystalline Au Plates of Nanometer Thickness by a Wet-Chemical Route

2004 ◽  
Vol 43 (46) ◽  
pp. 6360-6363 ◽  
Author(s):  
Xuping Sun ◽  
Shaojun Dong ◽  
Erkang Wang
2002 ◽  
Vol 366 (3-4) ◽  
pp. 220-223 ◽  
Author(s):  
Wenzhong Wang ◽  
Chun Lan ◽  
Yuanzhi Li ◽  
Kunquan Hong ◽  
Guanghou Wang

2008 ◽  
Vol 14 (5) ◽  
pp. 1615-1620 ◽  
Author(s):  
Min Han ◽  
Nai-En Shi ◽  
Wen-Li Zhang ◽  
Bao-Jun Li ◽  
Jian-Hua Sun ◽  
...  

Author(s):  
Pratibha L. Gai ◽  
M. A. Saltzberg ◽  
L.G. Hanna ◽  
S.C. Winchester

Silica based ceramics are some of the most fundamental in crystal chemistry. The cristobalite form of silica has two modifications, α (low temperature, tetragonal form) and β (high temperature, cubic form). This paper describes our structural studies of unusual chemically stabilized cristobalite (CSC) material, a room temperature silica-based ceramic containing small amounts of dopants, prepared by a wet chemical route. It displays many of the structural charatcteristics of the high temperature β-cristobalite (∼270°C), but does not undergo phase inversion to α-cristobalite upon cooling. The Structure of α-cristobalite is well established, but that of β is not yet fully understood.Compositions with varying Ca/Al ratio and substitutions in cristobalite were prepared in the series, CaO:Al2O3:SiO2 : 3-x: x : 40, with x= 0-3. For CSC, a clear sol was prepared from Du Pont colloidal silica, Ludox AS-40®, aluminium nitrate nonahydrate, and calcium nitrate hexahydrate in proportions to form a final composition 1:2:40 composition.


2021 ◽  
Vol 602 ◽  
pp. 412574
Author(s):  
Tahira Akhter ◽  
Muhammad Asif Yousuf ◽  
Muhammad Asghar ◽  
Ibrahim A. Alsafari ◽  
Akmal Jamil ◽  
...  

Rare Metals ◽  
2009 ◽  
Vol 28 (2) ◽  
pp. 122-126 ◽  
Author(s):  
Xianming Wu ◽  
Runxiu Li ◽  
Shang Chen ◽  
Zeqiang He

2007 ◽  
Vol 42 (9) ◽  
pp. 1761-1768 ◽  
Author(s):  
Zhen Fang ◽  
Kaibin Tang ◽  
Lisheng Gao ◽  
Dong Wang ◽  
Suyuan Zeng ◽  
...  

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