Results 21 to 30 of about 509,958 (319)

Improving the Thermal Properties of Polycarbonate via the Copolymerization of a Small Amount of Bisphenol Fluorene with Bisphenol A

open access: yesInternational Journal of Polymer Science, 2022
Polycarbonate is an attractive transparent plastic with high mechanical/thermal properties. A family of copolycarbonates of bisphenol-A (BPA), 9, 9-bis (4-hydroxyphenyl) fluorene (BHPF), and diphenyl carbonate (DPC) were prepared by a transesterification
Xiaozhou Zhang   +5 more
doaj   +1 more source

Comparison of several closure approximations for evaluating the thermoelastic properties of an injection molded short-fiber composite [PDF]

open access: yes, 2007
The accurate prediction of both the elastic properties and the thermal expansion coefficients is very important for the precise simulation of such processes as injection molding of short-fiber polymer-matrix composites.
DRAY, Delphine   +2 more
core   +1 more source

Weinberg’s Compositeness

open access: yesSymmetry, 2022
Nearly 60 years ago, Weinberg suggested a criterion for particle “compositeness”, which has acquired a new life with the discovery of new, exotic hadrons. His idea resonates with model-based intuition. I discuss the role it plays in the context of another of Weinberg’s creations, the model-independent framework of effective field theories.
openaire   +3 more sources

Effect of pretreatment on microstructural stability and mechanical property in a spray formed Al-Zn-Mg-Cu alloy

open access: yesMaterials & Design, 2021
Aluminum alloys fabricated by spray forming (SF) technology are commonly followed by hot-working without heat treatments. A new approach that is a pretreatment before hot-working is proposed in the present work.
Zhiping Wang   +8 more
doaj   +1 more source

Controllable Synthesis of ZnO Nanorod-nanosheets Hierarchical Nanostructure on a Stainless Steel Mesh Via A Facile Hydrothermal Growth

open access: yesMATEC Web of Conferences, 2016
ZnO nanorods-nanosheets (NR-NS) hierarchical nanostructure consisted of long nanorod and thin nanosheet branches have been built on a stainless steel mesh via a two-step hydrothermal growth process.
Zhu Shibu   +4 more
doaj   +1 more source

C/C-SiC Composites for Nozzle of Solid Propellant Ramjet

open access: yesJournal of Aeronautical Materials, 2017
Carbon fiber reinforced carbon and silicon carbide matrix composites for nozzle inner of solid propellant ramjet were prepared by using the hybrid process of "chemical vapor infiltration + precursor impregnation pyrolysis (CVI+PIP)".
WANG Lingling   +5 more
doaj   +1 more source

Compositional C++: Compositional parallel programming [PDF]

open access: yes, 1993
Submitted - 92-13.pdf Submitted - postscript ...
K. Mani Chandy, Carl Kesselman
openaire   +2 more sources

Carbon nanotube grafted carbon fibres: A study of wetting and fibre fragmentation [PDF]

open access: yes, 2010
26/09/12 meb. Author version, OK to pub.Carbon nanotubes (CNTs) were grafted on IM7 carbon fibres using a chemical vapour deposition method.The overall grafting process resulted in a threefold increase of the BET surface area compared to the original ...
Shaffer, MSP   +3 more
core   +1 more source

Self-healing composites: A review [PDF]

open access: yes, 2015
Self-healing composites are composite materials capable of automatic recovery when damaged. They are inspired by biological systems such as the human skin which are naturally able to heal themselves.
Duc Truong Pham   +5 more
core   +1 more source

Cu/Co mixed hierarchical tubular heterostructures for alkaline supercapacitors

open access: yesJournal of Materiomics, 2021
The hierarchical hollow structures of electrode materials s of supercapacitors is effective for the large specific surface area and fast ions and charge transports.
Ruimei Yuan   +5 more
doaj   +1 more source

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