Synthesis of Si3N4 Powder by Thermal Decomposition of SI(NH)2

1992 ◽  
Vol 287 ◽  
Author(s):  
Silvia Ampuero ◽  
Paul Bowen ◽  
Terry A. Ring
Keyword(s):  
Heat Treatment ◽  
Thermal Decomposition ◽  
Thermal Treatment ◽  
Treatment Cycle ◽  
Heat Treatment Cycle ◽  
Si3n4 Powder

ABSTRACTA fine white α-Si3N4 powder has been produced by the thermal decomposition of the coprecipitation product of the reaction between SiC14 and NH3. The Cl content, due to a reaction between Si(NH)2 and the NH4Cl by-product during the thermal treatment of the coprecipitate, has been reduced by using an isothermal step at ≈ 250°C in the heat treatment cycle.

Optimization of Heat Treatment Cycles for Automotive Parts Produced by Rheocasting Process

2006 ◽  
Vol 116-117 ◽  
pp. 505-508 ◽  
Author(s):  
Mario Rosso ◽  
Marco Actis Grande
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Performance ◽  
Treatment Cycle ◽  
Total Cost ◽  
Heat Treatment Cycle ◽  
Dimensional Precision ◽  
Heat Treated ◽  
Automotive Parts ◽  
High Level

This work aims at studying the possibility of optimising the heat treatment cycles of parts produced using the New Rheocasting process in order to reduce the total cost of the operation, attaining good mechanical properties for high performance parts. The mechanical properties and the microstructure features of the considered A 356 alloy and the relative produced parts have been analysed and studied on samples machined both from the as cast and from the heat treated compomnents. The obtained results showed the possibility of successfully modifying the T6 heat treatment cycle with economical benefits, maintaining at the same time comparable high level properties and performances, together with good dimensional precision.

The effect of different heat treatment cycle on hot corrosion and oxidation behavior of Ti–6Al–4V

2019 ◽  
Vol 6 (11) ◽  
pp. 116599 ◽  
Author(s):  
F Sharifi ◽  
V Abouei ◽  
A Alizadeh ◽  
Y Shajari ◽  
M Porhonar ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Hot Corrosion ◽  
Oxidation Behavior ◽  
Treatment Cycle ◽  
Heat Treatment Cycle ◽  
Corrosion And Oxidation

An Economical Heat Treatment Cycle for IMI Ti-230

1998 ◽  
Vol 13 (2) ◽  
pp. 203-212
Author(s):  
M. A. Hayat ◽  
S. M. A. Sulimam
Keyword(s):  
Heat Treatment ◽  
Treatment Cycle ◽  
Heat Treatment Cycle
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