HYDROTHERMAL OXIDATION OF BINARY MIXTURE OF Bi AND Ti METAL POWDERS: A NEW SYNTHETIC ROUTE OF BISMUTH TITANIUM COMPOUNDS

2003 ◽  
Author(s):  
N. MASAKI ◽  
S. UCHIDA ◽  
M. TOMIHA
Keyword(s):  
Binary Mixture ◽  
Metal Powders ◽  
Synthetic Route ◽  
Hydrothermal Oxidation ◽  
Titanium Compounds

Hydrothermal Preparation and Sintering of Fine Ceramic Powders

1983 ◽  
Vol 24 ◽  
Author(s):  
Shigeyuki Sōmiya
Keyword(s):  
Hydrothermal Reaction ◽  
Metal Powders ◽  
Hydrothermal Crystallization ◽  
Ceramic Powders ◽  
Hydrothermal Conditions ◽  
Hydrothermal Preparation ◽  
Fine Ceramic ◽  
Fine Powders ◽  
Hydrothermal Oxidation ◽  
Hydrothermal Precipitation

ABSTRACTHydrothermal preparation is one of the methods to make fine ceramic powders. There are: (1) hydrothermal oxidation, (2) hydrothermal precipitation, (3) hydrothermal synthesis, (4) hydrothermal decomposition, (5) hydrothermal crystallization, etc. Starting materials for hydrothermal oxidation is mainly metal. Reaction between metal and high temperature-high pressure solution occurs to form oxide. Therefore, starting materials for very fine powders are: (1) metal powders or chips, (2) gel, solutions, etc., (3) oxides and solutions, (4) solids, and (5) hydrous material. This paper describes hydrothermal crystallization and oxidation. Fine powders of ZrO2, Al2O3, HfO2, and Al2O3-ZrO2 are described.Sintered bodies are also able to get under hydrothermal conditions with reactions. Hydrothermal reaction sintered bodies of iron oxides, Cr2O3, ZrO2 and HfO2 were obtained under 100 MPa above 1000°C with 1–5 μm grains.

scholarly journals Powder Metallurgy Techniques for Titanium Alloys-A Review

2020 ◽  
Vol 184 ◽  
pp. 01045
Author(s):  
Pradeep Kumar Manne ◽  
Nutenki Shravan Kumar ◽  
Tanya Buddi ◽  
A. Anitha Lakshmi ◽  
Ram Subbiah
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Titanium Alloys ◽  
Biomedical Applications ◽  
Elevated Temperatures ◽  
Cost Effective ◽  
Corrosion And Wear ◽  
Metal Powders ◽  
Effective Component ◽  
Titanium Compounds

Powder metallurgy (PM) is a technique in which materials or components are made from metal powders. In this paper, the overview about titanium alloys and their advantages over engineering applications has been discussed. They are very strong and also possess great mechanical properties and incredible corrosion and wear resistance, and also capable of performing operations at elevated temperatures approximately up to 600ºC. This paper provides various compositions of titanium alloys and various powder metallurgy techniques used for sintering powders of various compositions and their applications. The properties of titanium compounds show the manufacturing of cost effective component. As a result of their fantastic mechanical, physical and organic execution they are finding consistently expanding application in biomedical applications.

Solidification of a binary mixture in a shear flow

2002 ◽  
Author(s):  
Sophie Mergui ◽  
Boubaker Feroual ◽  
Christine Benard ◽  
Dominique Gobin
Keyword(s):  
Shear Flow ◽  
Binary Mixture
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