Results 11 to 20 of about 24,721 (208)
A Novel Grain-Based DEM Model for Evaluating Surface Integrity in Scratching of RB-SiC Ceramics
Materials, 2022 A novel grain-based DEM (Discrete Element Method) model is developed and calibrated to simulate RB-SiC (Reaction-Bonded Silicon Carbide) ceramic and associated scratching process by considering the bonded SiC and Si grains and cementitious materials.
Huan Qi +7 more
openaire +2 more sources
The International Journal of Advanced Manufacturing Technology, 2021 Abstract RB-SiC ceramic is one of the most important and useful material as optical precision elements in many scientific research fields. In this paper, a novel cold atmospheric plasma (CAP), which is based on the precision grinding process in surface technology to modify at room temperature (RT) for grinding with a combination of plasma ...
Jiabin Xu +7 more
openaire +1 more source
Experimental investigation on the surface and subsurface damages characteristics and formation mechanisms in ultra-precision grinding of SiC [PDF]
, 2017 Surface and subsurface damages appear inevitably in the grinding process, which will influence the performance and lifetime of the machined components. In this paper, ultra-precision grinding experiments were performed on Reaction-bonded Silicon Carbide (
Li, Zhipeng +3 more
core +1 more source
Archaeometry, EarlyView., 2022 Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares +5 more
wiley +1 more source
Bismuth oxide based ceramics with improved electrical and mechanical properties: Part II. Structural and mechanical properties [PDF]
, 1988 Coprecipitation as a method of preparation for bismuth oxides based ceramics yields relatively strong and machineable materials in comparison with the solid state reaction.
Burggraaf, A.J. +4 more
core +3 more sources
Research Reports from the Programme for Belize Archaeological Project, Volume Six [PDF]
, 2014 Table of Contents : Background and Introduction to the 2011 Season of the Programme for Belize Archaeological Project / by Fred Valdez, Jr. and Marisol Cortes-Rincon (p.1-4) -- Investigations at Structure 3, La Milpa: The 2011 Field Season / by Debora ...
Cortes-Rincon, Marisol +2 more
core +1 more source
Radiopaque strontium fluoroapatite glass-ceramics
Frontiers in Bioengineering and Biotechnology, 2015 The controlled precipitation of strontium fluoroapatite crystals, was studied in four base glass compositions derived from the SiO2 – Al2O3 – Y2O3 – SrO – Na2O – K2O/Rb2O/Cs2O – P2O5 – F system.
Wolfram eHöland +3 more
doaj +1 more source
Radiocarbon dates from the Highland Jar and Coffin burial site of Phnom Khnang Peung, Cardamom Mountains, Cambodia [PDF]
, 2015 The Cardamom Mountain Jar and Coffin burial site of Phnom Khnang Peung is the most extensive example of the distinctive burial ritual first reported by Beavan et al. (2012a).
Beavan, Nancy +3 more
core +1 more source
Tribology Online, 2011 In this paper, friction and wear properties of a copper/carbon/rice bran ceramics (Cu/C/RBC) composite under water-lubricated conditions were investigated experimentally.
Kei Shibata +2 more
doaj +1 more source
Ti-rich and Cu-poor grain-boundary layers of CaCu$_3$Ti$_4$O$_{12}$ detected by x-ray photoelectron spectroscopy [PDF]
, 2007 Cleaved and polished surfaces of CaCu$_3$Ti$_4$O$_{12}$ ceramics have been investigated by x-ray photoelectron spectroscopy (XPS) and energy dispersive x-ray spectroscopy (EDX), respectively. While EDX technique shows the identical CaCu$_3$Ti$_4$O$_{12}$
Cao, G. H. +3 more
core +3 more sources