New U-Pb Geochronological Constraints on Formation and Evolution of the Susong Complex Zone in the Dabie Orogen

2017 ◽  
Vol 91 (5) ◽  
pp. 1915-1918 ◽  
Author(s):  
Yuan LI ◽  
Yican LIU ◽  
Yang YANG ◽  
Liangpeng DENG
Keyword(s):  
Dabie Orogen ◽  
Formation And Evolution ◽  
Geochronological Constraints

Geochronological constraints on 140–85 Ma thermal doming extension in the Dabie orogen, central China

2002 ◽  
Vol 45 (9) ◽  
pp. 801-817 ◽  
Author(s):  
Changhai Xu ◽  
Zuyi Zhou ◽  
Changqian Ma ◽  
Peter W. Reiners
Keyword(s):  
Central China ◽  
Dabie Orogen ◽  
Geochronological Constraints ◽  
Thermal Doming

AFM study of the dynamics of α-alumina surface faceting during high-temperature processing

1995 ◽  
Vol 53 ◽  
pp. 334-335 ◽  
Author(s):  
Michael W. Bench ◽  
Jason R. Heffelfinger ◽  
C. Barry Carter
Keyword(s):  
High Temperature ◽  
Thin Foil ◽  
Sem Analysis ◽  
Conductive Coatings ◽  
Force Microscopy ◽  
Minimal Sample ◽  
Atomic Force ◽  
Formation And Evolution ◽  
High Temperature Processing ◽  
Nominal Surface

To gain a better understanding of the surface faceting that occurs in α-alumina during high temperature processing, atomic force microscopy (AFM) studies have been performed to follow the formation and evolution of the facets. AFM was chosen because it allows for analysis of topographical details down to the atomic level with minimal sample preparation. This is in contrast to SEM analysis, which typically requires the application of conductive coatings that can alter the surface between subsequent heat treatments. Similar experiments have been performed in the TEM; however, due to thin foil and hole edge effects the results may not be representative of the behavior of bulk surfaces.The AFM studies were performed on a Digital Instruments Nanoscope III using microfabricated Si3N4 cantilevers. All images were recorded in air with a nominal applied force of 10-15 nN. The alumina samples were prepared from pre-polished single crystals with (0001), , and nominal surface orientations.

Sign in / Sign up

Export Citation Format

Share Document