Wettability and interfacial phenomena in liquid‐phase bonding of refractory diboride ceramics: recent developments

2021 ◽  
Author(s):  
R. Asthana ◽  
N. Sobczak ◽  
M. Singh
Keyword(s):  
Liquid Phase ◽  
Interfacial Phenomena ◽  
Recent Developments

Questions, Controversies and Frustration in Quantum Antiferromagnetism

1991 ◽  
Vol 05 (01n02) ◽  
pp. 171-189 ◽  
Author(s):  
P. Chandra ◽  
P. Coleman ◽  
I. Ritchey
Keyword(s):  
Liquid Phase ◽  
Spin Liquid ◽  
Nematic State ◽  
Recent Developments

The search for a gapless spin liquid phase has raised many issues in quantum antiferromagnetism. Here we review recent developments in this field, and in particular address questions and controversies surrounding a proposed “spin nematic” state.

scholarly journals The Effect of Transient Liquid Phase on the Joining Process of Aluminum Foam Core Sandwiches

2016 ◽  
Vol 16 (1) ◽  
pp. 48-58
Author(s):  
A. T. Tabrizi ◽  
M. Azadbeh
Keyword(s):  
Liquid Phase ◽  
Bonding Strength ◽  
Energy Dispersive Spectrometry ◽  
Transient Liquid Phase ◽  
Liquid Phase Sintering ◽  
Bending Test ◽  
Recent Developments ◽  
Al Foam ◽  
Joining Process ◽  
Mathematical Relations

Abstract Despite recent developments in sandwich panels production technology, there are some difficulties in joining core sandwiches. Liquid Phase Sintering is a conventional method to increase the density of powder metallurgy parts. In this paper, we applied LPS as a joining process between Al-foam and Al-metal by using Al-mixture powders with different compositions as the interlayer. At first stage, Al-Zn powder mixture was used and the possibility of this process was investigated. At later stages, we tried to increase the joint bonding strength with different Al-mixture powder compositions. 3-point bending test was applied and by using mathematical relations, bonding strengths were calculated. The highest bonding strength was obtained, about 9 kPa, when Al-Zn-Mg was used as the interlayer. Also energy dispersive spectrometry (EDS) was used to investigate the diffusion of additive elemental powders to Al-mixture powders.

Recent Developments in Modeling of Liquid Phase Electroepitaxy: A Continuum Approach

1996 ◽  
Vol 49 (12) ◽  
pp. 477-495 ◽  
Author(s):  
Sadik Dost
Keyword(s):  
Liquid Phase ◽  
High Speed ◽  
Growth Process ◽  
Theoretical Models ◽  
Surface Kinetics ◽  
Thermoelectric Effects ◽  
High Quality ◽  
Growth Technique ◽  
Recent Developments ◽  
Temperature Solution

Liquid phase electroepitaxy (LPEE) is a low temperature, solution growth technique which has been proven to be successful in growing high quality, thick compound and alloy semiconducting single crystal layers. The availability of such high quality alloy layers would open new horizons in the production of optoelectronic and high-speed devices. Due to the technological importance of this crystal growth technique, some theoretical models for its growth process have been developed recently to provide needed information to experimentalists to develop growth configurations for reproducible desired single crystals. These models have shed light on various aspects of the LPEE growth process. This review article, with 71 references, provides the reader with an overview of recently developed macroscopic continuum models for the LPEE growth process of binary and ternary semiconductors. Fundamental equations of these models are obtained from the basic principles of electrodynamics and thermomechanics of the continuum. The models include various thermoelectric effects observed in LPEE and also incorporates microscopic surface phenomena such as surface kinetics. Results of numerical simulations are presented, and compared with available experimental data. The significance of research results are discussed.

Computational electrochemistry: prediction of liquid-phase reduction potentials

2014 ◽  
Vol 16 (29) ◽  
pp. 15068-15106 ◽  
Author(s):  
Aleksandr V. Marenich ◽  
Junming Ho ◽  
Michelle L. Coote ◽  
Christopher J. Cramer ◽  
Donald G. Truhlar
Keyword(s):  
Liquid Phase ◽  
Chemical Reactions ◽  
Reduction Potentials ◽  
Phase Reduction ◽  
Computational Electrochemistry ◽  
Recent Developments

The article reviews recent developments and applications for predicting the standard reduction potentials of chemical reactions in solution.

Recent developments in liquid-phase selective oxidation using environmentally benign oxidants and mesoporous metal silicates

2014 ◽  
Vol 4 (7) ◽  
pp. 1869-1889 ◽  
Author(s):  
Oxana A. Kholdeeva
Keyword(s):  
Hydrogen Peroxide ◽  
Liquid Phase ◽  
Organic Compounds ◽  
Selective Oxidation ◽  
Environmentally Benign ◽  
Organic Hydroperoxides ◽  
Oxidation Of Organic Compounds ◽  
Recent Developments ◽  
Mesoporous Metal ◽  
Silicate Materials

This Perspective article surveys recent advances in the synthesis of mesoporous transition-metal-containing silicate materials and their use for the liquid-phase selective oxidation of organic compounds with environmentally friendly oxidants – molecular oxygen, hydrogen peroxide and organic hydroperoxides.

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