scholarly journals Development of Porous Metal Mold Material using Vacuum Sintering Method

2008 ◽  
Vol 41 (5) ◽  
pp. 245-253
Author(s):  
Dong-Won Kim ◽  
Kyu-Il Cho ◽  
Hyun-Keun Kim ◽  
Ja-Youn Kang ◽  
Won-Hyuk Rhee ◽  
...  
Keyword(s):  
Porous Metal ◽  
Mold Material ◽  
Metal Mold ◽  
Vacuum Sintering ◽  
Sintering Method

Sintering of NiO/YSZ Anode Layers for Metal-Supported Solid Oxide Fuel Cell

2014 ◽  
Vol 1040 ◽  
pp. 155-160
Author(s):  
Andrey A. Solovyev ◽  
Igor V. Ionov ◽  
Anastasya N. Kovalchuk ◽  
Aleksandr I. Kirdyashkin ◽  
Anatoly Maznoy ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Porous Metal ◽  
Current Collector ◽  
Inert Atmosphere ◽  
Metal Substrate ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Vacuum Sintering ◽  
Screen Printing Technique

The construction of a metal-supported fuel cell has been recently generating a growing interest among the designers of solid oxide fuel cells. The present work is aimed at solving the problem related to high-temperature sintering of fuel cell NiO/YSZ anode on the porous metal substrate functioning both as a supporting structure and a reliable current collector. Hence, its irreversible oxidation during high-temperature sintering should be avoided. NiO/YSZ layers were applied on porous metal samples by a screen-printing technique and sintered in reducing and inert atmospheres, as well as in vacuum. The obtained layers were studied by means of scanning electron microscopy and X-ray phase analysis. It was shown that a temperature of 1000°С does not ensure a substantial sintering of Ni and YSZ granules in a reducing atmosphere. Under the sintering temperature above 1230°С in an inert atmosphere and vacuum, the nickel oxide dissociation and its massive agglomeration are observed. The conditions of NiO/YSZ layer vacuum sintering were experimentally determined which provide a high-grade sintering of nickel cermet granules without Ni agglomeration, disturbance of homogeneity in the formed anode layer, and the metal substrate oxidation.

Single emitter high power semiconductor laser module using vacuum sintering method

Optik ◽  
2020 ◽  
Vol 207 ◽  
pp. 164370
Author(s):  
Peidong Xu ◽  
Bin Wang ◽  
Yong Wang ◽  
Baoxue Bo ◽  
Xiantao Wang
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Vacuum Sintering ◽  
Power Semiconductor ◽  
Laser Module ◽  
Single Emitter ◽  
Sintering Method

Microstructure and Properties of Ti(C,N)-Based Cermets

2014 ◽  
Vol 633 ◽  
pp. 82-87
Author(s):  
Shui Qing Xiao ◽  
Shang Hua Wu
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Development Trend ◽  
Vacuum Sintering ◽  
Microstructure And Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
The Development Trend ◽  
The Relationship ◽  
Sintering Method

The present review will try to sum up the research on the microstructure and properties of the Ti(C,N)-based cermets materials in recent years. Firstly, the development history, the microstructure and mechanical properties of Ti(C,N)-based cermets, and the relationship between Ti(C,N)-based cermets microstructure and their properties were introduced respectively. Secondly, Compared with different microstructure and properties of Ti(C,N)-based cermets material which were made by different composite constituent. Furthermore, the relationship between mechanical properties of Ti(C,N)-based cermets and sintering method was introduced. Results show that the high performance products can be produced by means of fast sintering techniques at low temperature successfully, such as spark plasma sintering technology. However, the most widely used way is vacuum sintering method. Lastly, the development trend of Ti(C,N)-based cermets were included.

Fabrication and Properties of High Quality Transparent Ho:YAG Ceramics

2012 ◽  
Vol 185 ◽  
pp. 51-54
Author(s):  
Hao Yang ◽  
Jian Zhang ◽  
Xian Peng Qin ◽  
De Wei Luo ◽  
Jan Ma ◽  
...  
Keyword(s):  
Cross Section ◽  
Yttrium Aluminum Garnet ◽  
Transparent Ceramics ◽  
Reactive Sintering ◽  
Photoluminescence Spectra ◽  
Vacuum Sintering ◽  
High Quality ◽  
Average Grain Size ◽  
Yttrium Aluminum ◽  
Sintering Method

High quality holmium doped Yttrium Aluminum Garnet (YAG) transparent ceramics were fabricated by a reactive sintering method under vacuum. Fully dense Ho:YAG ceramics with the average grain size of ~ 10 μm were obtained after vacuum sintering at 1780 for 8 h. The optical properties, microstructures and photoluminescence spectra of the fabricated Ho:YAG ceramics were investigated. The transmittances of Ho:YAG ceramic are higher than 82% at 400 nm and 84% at 2400 nm. The absorption coefficient was 1.32 cm-1 for 1.5 at.% Ho:YAG at 1907 nm. And the absorption cross section of the Ho:YAG ceramic is 0.645×10-20 cm2.

scholarly journals 502 Grinding characteristics of Multi-axis Ultraprecision Mirror Surface Machining System in Metal Mold Material

2000 ◽  
Vol 2000 (0) ◽  
pp. 119-120
Author(s):  
Kazutoshi Katahira ◽  
Hitoshi Ohmori ◽  
Masahiro Anzai ◽  
Yutaka Yamagata ◽  
Akitake Makinouchi ◽  
...  
Keyword(s):  
Mold Material ◽  
Mirror Surface ◽  
Metal Mold ◽  
Surface Machining ◽  
Machining System

Synthesis and Characterization of CuInS2 and CuInSe2 Compounds by Vacuum Sintering Method

2011 ◽  
Vol 304 ◽  
pp. 119-123
Author(s):  
Zhen Dong Wang ◽  
Zhen Quan Lai ◽  
Guo Rong Chen
Keyword(s):  
Milled Powder ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Vacuum Sintering ◽  
Raman Scattering Spectroscopy ◽  
Copper Indium ◽  
Structure Morphology ◽  
Different Temperatures ◽  
Sintering Method

We report herein synthesis and characterization of CuInS2and CuInSe2compounds by vacuum sintering method. In this study, the manual-milled and ball-milled precursors including copper, indium, and sulfur (selenium) elements were sintered under vacuum at different temperatures for synthesis of CuInS2and CuInSe2compounds, respectively. The crystal structure, morphology and Raman property of the sintered powder were investigated by X-ray diffraction, scanning electron microscope and Raman scattering spectroscopy, respectively. The results show that the structure of the products, which was sintered with the manual-milled and ball-milled precursors, were transformed into the single chalcopyrite phase CuInS2powder at 923K and 623K, and the grain size are about 2～3μm and 250 nm, respectively. In addition, the CuInSe2 powder was synthesized about 723K via using the ball-milled powder including copper, indium, and selenium elements as the precursor.

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