Results 151 to 160 of about 107,176 (359)
High temperature resistant polyimide from tetra ester, diamine, diester and N-arylnadimide [PDF]
, 1985 The invention described relates to improved polyimide resins which are noted for their high thermal and oxidative stability, high strength at elevated temperatures and which exhibit many other outstanding physical and chemical properties, especially ...
Pater, R. H.
core +1 more source
Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components
Advanced Engineering Materials, EarlyView.This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern +3 more
wiley +1 more source
Reviews on Advanced Materials ScienceThree-dimensional (3D) braided composites have received much attention in the fields of aerospace, the automotive industry, etc., due to their unique structure and excellent performance.
Guo Zeteng +5 more
doaj +1 more source
Geometry and scaling of cosmic voids [PDF]
arXiv, 2008 CONTEXT: Cosmic voids are observed in the distribution of galaxies and, to some extent, in the dark matter distribution. If these distributions have fractal geometry, it must be reflected in the geometry of voids; in particular, we expect scaling sizes of voids. However, this scaling is not well demonstrated in galaxy surveys yet.
arxiv
Advanced Engineering Materials, EarlyView.An electronic system is presented consisting of a silver thin‐film electrode on a polyimide substrate working both as a heating element and a resistive temperature sensor, generating millisecond heat pulses with very fast heating and cooling rates and a flat peak temperature with a tunable duration.
Bahman K. Boroujeni +5 more
wiley +1 more source
Preparing composite materials from matrices of processable aromatic polyimide thermoplastic blends [PDF]
, 1991 Composite materials with matrices of tough, thermoplastic aromatic polyimides are obtained by blending semi-crystalline polyimide powders with polyamic acid solutions to form slurries, which are used in turn to prepare prepregs, the consolidation of ...
Baucom, Robert M. +3 more
core +1 more source
, 2008 Three-scale homogenization procedure is proposed in this paper to provide estimates of the effective thermal conductivities of porous carbon-carbon textile composites.
Sejnoha, M., Vorel, J.
core +1 more source
Effect of Voids inside AP Particles on Burning Rate of AP/HTPB Composite Propellant [PDF]
, 2008 Makoto Kohga
openalex +1 more source
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source
A Numerical and Experimental Approach for Modeling Porosity Due to Entrapped Air and Volatiles Off-Gassing During Manufacturing of Composite Structures [PDF]
High performance composite structures have strict requirements regarding acceptable levels of porosity. The impact can be significant on mechanical performance and mitigating the growth of voids can be a challenge given the complexity of the problem. The
Coxon, Brian +8 more
core +2 more sources