Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Semiconductors can be excited by exposure to radiation of a higher energy than the band gap and an energy-rich electron–hole pair is formed. This energy can be utilized electrically, to change the catalyst surface itself, or chemically. For photoelectrochemical (PEC) water-splitting, a light-sensitive semiconductor is…
Cement rotary kilns require high performing refractories able to withstand very high temperatures, high thermo-mechanical stresses, and chemical attack from hot or liquid clinker. Consequently the lining of the upper transition, burning and lower transition zones consists very often in magnesia spinel bricks. Magnesia…
With the principal objective of providing inexpensive Ce:YAG single-crystal phosphors for higher brightness white LEDs, we grew Ce:YAG single crystals using the edge-defined filmfed growth (EFG) technique with a Mo crucible. From the analysis on the adhesive material and blackish crystals, the crystals have a blackish…
The theory presented in an earlier paper1 is extended to explain anomalous data collected during very precise and careful experiments of the Seebeck effect. Despite meticulous procedures, researchers found irreducible temperature offsets and the temperature-voltage curve not passing through the origin. This paper show…
This chapter contains sections titled: Introduction Overview of Sputter Coating Characteristics of Sputtered Atoms Sputtering Cathodes Relationship between Process Parameters and Coating Properties Biased Sputtering Adhesion and Stress in Sputtered Coatings Sputtering Electrically Insulating Materials Recent Developme…
Our innovative superplastically foaming method was used to create closed-pore inclusive zirconia-based ceramics. Yttrium oxide was added to monoclinic zirconia to stabilize the matrix. Sintering and superplastic deformation were used to form a solid solution and transform it to a cubic phase. Porous ceramics formed vi…
Porous mullite-based foams prepared by direct foaming with wheat flour and partial sintering at 1600 °C have been characterized via optical and electron microscopy, stereology-based image analysis, mercury porosimetry and impulse excitation. By varying the time of homogenization in a shaker from 0.1 to 10 h the porosi…
The perovskite-type oxide catalyst, LnFeO3 (Ln = La, Pr, Sm, Gd, and Dy), prepared by decomposition method of heteronuclear cyano complex precursor (CN method) was applied to liquid-phase organic reaction, cyanosilylation of benzaldehyde with TMSCN. The catalytic activity per specific surface area over LaFeO3 was depe…
This chapter contains sections titled: Introduction Process Description Plasma Effects on Materials Deposition Future Outlook
Dynamic simulation model of infiltration of liquid Cu-Ti alloys into carbonaceous preforms have been investigated using a modified Washburn model. Liquid melt infiltration (LMI) is a useful preparation route for structural component based Cu-Ti/C composites. The present work was undertaken to understand the capillary…
This report describes the implementation of a crystal plasticity framework (VPSC) for irradiation hardening and plastic deformation in the finite element code, MOOSE. Constitutive models for irradiation hardening and the crystal plasticity framework are described in a previous report [1]. Here we describe these models…
This work presents the first rare earth metal oxide superhydrophobic surfaces fabricated by using the solution precursor plasma spraying technique. The water contact angle measured on the surface is 161°. The dynamic impact of a water droplet is also captured by a high speed camera. The topography and cross-sectional…
A thorough investigation has been carried out in order to determine the suitability of diamond and silicon carbide for active interrogation applications. \nThis included electrical and radiological characterisation of single crystal diamond (D-SC) and polycrystalline diamond (D-PC) detectors; epitaxial silicon carbide…
Replacement of oxygen by nitrogen atoms in bambusurils could produce multiple-anion binders. This hypothesis is now validated experimentally. The solid-state structures of semiaza-bambus[6]urils exhibit simultaneous accommodation of three anions, linearly positioned within the cavity along the main symmetry axis of th…
Intelligent packaging systems with enhanced communication functions are getting an increasing amount of attention in the food packaging field, because they can inform the consumer of the actual quality of the products. This thesis is an investigation of the development of colorimetric indicators intended for use in in…
Monolayer molybdenum disulfide (MoS$_2$) has emerged as an excellent 2D model system because of its two inequivalent, direct-gap valleys that lead to exotic bound and excited states. Here we focus on one such bound state, the negatively charged trion. Unlike excitons, trions can radiatively decay with non-zero momentu…
Colloidal and other granular media experience a transition to rigidity known as jamming if the fill fraction is increased beyond a critical value. The resulting jammed structures are locally disordered, bear applied loads inhomogenously, possess the minimal number of contacts required for stability and elastic propert…
Ceramic multi-layer systems are the key components of solid oxide cells (SOC) to be used either for power generation or energy storage. Over the last decades continuous improvement in materials, architecture and manufacturing processes have been achieved to improve performance, durability and lifetime. The advanced co…
MgAl2O4 coatings, used for electrical insulation along the metallic seals in high temperature fuel cell stacks, tend to fail prematurely due to generated stresses during on-off thermal cycles. To enhance stress bearing capability and the durability of these coatings, self-healing was investigated by introducing additi…
In this study, we prepared higher manganese silicides (HMS) containing small amount of MnSi or silicon nano-particles to study the energy dependent scattering effect, which had been reported to improve the power factor. The samples were prepared in induction furnace followed by liquid quenching technique, to obtain fi…