نتایج جستجو برای: sintering annealing treatment

تعداد نتایج: 1429830  

Journal: :Journal of Alloys and Compounds 2023

High-entropy alloys are extensively studied due to their very promising properties. However manufacturing methods currently used prepare HEAs complicated, costly, and likely non-industrially scalable processes. This limits evolution poses questions regarding the material's applicability in future. Considering abovementioned point, we developed a novel methodology for efficient HEA production us...

Journal: :Materials Science and Engineering A-structural Materials Properties Microstructure and Processing 2021

In the area of metal matrix composites, novel reinforcing options are currently being evaluated. Particles amorphous alloys present an interesting possibility to reinforce soft metals. work, interaction between Fe66Cr10Nb5B19 metallic glass and aluminum during spark plasma sintering (SPS) was studied for first time. order trace phase microstructural changes upon sintering, mixtures containing 2...

2014
Afshin Tarat Chris J Nettle Daniel T J Bryant Daniel R Jones Mark W Penny Richard A Brown Ravish Majitha Kenith E Meissner Thierry G G Maffeis

We have developed a low-cost technique using a conventional microwave oven to grow layered basic zinc acetate (LBZA) nanosheets (NSs) from a zinc acetate, zinc nitrate and HMTA solution in only 2 min. The as-grown crystals and their pyrolytic decomposition into ZnO nanocrystalline NSs are characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), atomic for...

2010
Tsutomu Uchida Toshiki Shiga Masafumi Nagayama Kazutoshi Gohara

Clathrate hydrates have recently received attention as novel storage and transportation materials for natural gases or hydrogen. These hydrates are treated as powders or particles, and moderate storage temperatures (around 253 K) are set for economic reasons. Thus, it is necessary to consider the sintering of hydrate particles for their easy handling because the hydrates have a framework simila...

2016
Tomofumi Sawada Sebastian Spintzyk Christine Schille Judit Zöldföldi Angelos Paterakis Ernst Schweizer Ingrid Stephan Frank Rupp Jürgen Geis-Gerstorfer

This study analyzed the shear bond strength (SBS) of resin composite on zirconia surface to which a specific conditioner was applied before sintering. After sintering of either conditioner-coated or uncoated specimens, both groups were divided into three subgroups by their respective surface modifications (n = 10 per group): no further treatment; etched with hydrofluoric acid; and sandblasted w...

2017
Thomas Öhlund Magnus Hummelgård Håkan Olin

Electrically conductive films are key components in most printed and flexible electronics applications. For the solution processing of conductive films, inks containing silver nanoparticles (AgNPs) remain important because of their relatively easy processing and generally low resistivity after a sintering procedure. Because the commonly used, moderate sintering temperatures of 150-300 °C are st...

2016
Eugene A. Olevsky Stephen M. Rolfing Andrey L. Maximenko

A new ultra-rapid process of flash spark plasma sintering is developed. The idea of flash spark plasma sintering (or flash hot pressing - FHP) stems from the conducted theoretical analysis of the role of thermal runaway phenomena for material processing by flash sintering. The major purpose of the present study is to theoretically analyze the thermal runaway nature of flash sintering and to exp...

2008
Richard A. Gilstrap Christopher J. Summers

The importance and use of transparent conducting oxides (TCOs) has grown significantly over the last decade. The most successful of these materials is tin-doped indium oxide (ITO), which can be found in a wide variety of applications including flat-panel displays, functional glass, solar cells, and lightemitting diodes. When deposited as a thin film, the conductivity of an ITO layer commonly re...

2014
M. U. Hashmi Saqlain A. Shah Ashraf S. Elkady

In order to improve the chemical stability and modify the biodegradability of bio-glass ceramics materials for certain applications, a correlation between structural and biological properties of bio-glass ceramics is very essential and these properties are found to be greatly dependent on the composition and synthetic parameters of the material. In the present work, an attempt has been made to ...

2016
Sheng Yuan Catherine Journet Sébastien Linas Vincent Garnier Philippe Steyer Stéphane Benayoun Arnaud Brioude Bérangère Toury Umit B. Demirci Philippe Miele

Hexagonal boron nitride (h-BN) is a well-known material whose use is almost restricted to lubricating applications in domains ranging from metallurgy to cosmetics. Howover, h-BN displays many other interesting properties, opening new perspectives for other engineering applications, such as as a solid lubricant in aeronautics, as the perfect substrate to graphene for electronic devices, etc. How...

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