Synthesis and thermomechanical characterization of PEG/cristobalite composites
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-017-0703-2
Abstract: Synthesis and thermomechanical characterization of polyethylene glycol-silica cristobalite composites have been successfully performed. Commercial Polyethylene glycol (PEG) 4000 and natural-silica-sand-derived cristobalite (SiO2) powders were used in this research. The cristobalite ceramic powder was produced by… read more here.
Keywords: synthesis thermomechanical; peg cristobalite; cristobalite; peg ... See more keywords
Hydrogen abstraction from methane on cristobalite supported W and Mn oxo complexes: A DFT study
Sign Up to like & getrecommendations! Published in 2018 at "Molecular Catalysis"
DOI: 10.1016/j.mcat.2017.11.039
Abstract: Abstract The oxidative coupling of methane using the MnNaW/SiO 2 catalyst was considered for the W-Mn two-metal-site model on the (111) surface of α-cristobalite by DFT means in the cluster approximation. The crucial step of… read more here.
Keywords: methane; cristobalite; hydrogen abstraction; abstraction methane ... See more keywords
Local thermal conductivity measurements to determine the fraction of α-cristobalite in thermally grown oxides for aerospace applications
Sign Up to like & getrecommendations! Published in 2020 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2019.10.027
Abstract: Abstract Devitrification of the thermally grown oxide that forms in aerospace coatings used to protect ceramic matrix composites is a contributor to the mechanical failure of these coatings at high operating temperatures. Current methods used… read more here.
Keywords: thermally grown; conductivity measurements; thermal conductivity; local thermal ... See more keywords
Volcanic SiO2-cristobalite: A natural product of chemical vapor deposition
Sign Up to like & getrecommendations! Published in 2020 at "American Mineralogist"
DOI: 10.2138/am-2020-7236
Abstract: Abstract Cristobalite is a low-pressure, high-temperature SiO2 polymorph that occurs as a metastable phase in many geologic settings, including as crystals deposited from vapor within the pores of volcanic rocks. Such vapor-phase cristobalite (VPC) has… read more here.
Keywords: vpc; chemical vapor; sio2; vapor deposition ... See more keywords