Kinetics of α- and β-Si3N4 formation from oxide-free high-purity Si powder

1991 ◽  
Vol 26 (16) ◽  
pp. 4541-4544 ◽  
Author(s):  
A. Varma ◽  
R. G. Pigeon ◽  
A. E. Miller
Keyword(s):  
High Purity ◽  
Kinetics Of

Intrinsic nitridation kinetics of high-purity silicon powder

AIChE Journal ◽  
1996 ◽  
Vol 42 (12) ◽  
pp. 3477-3483 ◽  
Author(s):  
Mostafa Maalmi ◽  
Arvind Varma
Keyword(s):  
High Purity ◽  
Silicon Powder ◽  
High Purity Silicon ◽  
Kinetics Of

Role of deformation twins in static recrystallization kinetics of high-purity alpha titanium

2016 ◽  
Vol 22 (6) ◽  
pp. 1041-1048 ◽  
Author(s):  
Jong Woo Won ◽  
Taekyung Lee ◽  
Seong-Gu Hong ◽  
Yongmoon Lee ◽  
Jeong Hun Lee ◽  
...  
Keyword(s):  
High Purity ◽  
Static Recrystallization ◽  
Recrystallization Kinetics ◽  
Deformation Twins ◽  
Alpha Titanium ◽  
Kinetics Of

Kinetics of factor IX activity differ from that of factor IX antigen in patients with haemophilia B receiving high-purity factor IX replacement

Haemophilia ◽  
1999 ◽  
Vol 5 (3) ◽  
pp. 174-180 ◽  
Author(s):  
Liebman ◽  
Rosenwald-Zuckerman ◽  
Retzios ◽  
Yasmin ◽  
Kasper
Keyword(s):  
High Purity ◽  
Factor Ix ◽  
Haemophilia B ◽  
Kinetics Of

The Kinetics of Oxidation of High Purity Nickel

1954 ◽  
Vol 101 (3) ◽  
pp. 128 ◽  
Author(s):  
E. A. Gulbransen ◽  
K. F. Andrew
Keyword(s):  
High Purity ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

The Kinetics of Melting: Liquid Fraction versus Time

2016 ◽  
Vol 256 ◽  
pp. 94-99
Author(s):  
Du Yao Zhang ◽  
Helen V. Atkinson ◽  
H.B. Dong
Keyword(s):  
High Purity ◽  
Liquid Fraction ◽  
Freezing Range ◽  
Process Window ◽  
Thermodynamic Prediction ◽  
Purity Aluminium ◽  
Fraction Versus ◽  
High Purity Aluminium ◽  
Semi Solid ◽  
Kinetics Of

The fraction liquid present during semi-solid processing has a critical effect. Conventionally the process window has been defined by inspecting the liquid fraction versus temperature curve (derived from thermodynamic prediction using a thermodynamic prediction software package for example, or derived from differential scanning calorimetry results). It has been assumed that a freezing range with temperature is required for semi-solid processing to be possible. However, recently a South African group (Curle, Moller and Wilkins) has shown that it is possible to rheo-process both high-purity aluminium and a binary Al-Si eutectic alloy i.e. materials with no freezing range. This behaviour highlights the fact that it takes time for liquid to form i.e. the kinetics of melting are important. Here the liquid fraction vs time for high purity aluminium is derived from experimental results to identify the process window in terms of time rather than temperature. The time sensitivity in thixoforming or rheocasting depends on the sample mass, the heat flux and the phase transformation temperature. It is also important in determining the vulnerability to defects such as hot tears, which tend to occur particularly with the alloys which are conventionally wrought rather than cast such as the 2000 series aluminium alloys.

Influence of Silicon and Manganese on Corrosion Behavior of Austenitic Stainless Steels

CORROSION ◽  
1968 ◽  
Vol 24 (12) ◽  
pp. 393-402 ◽  
Author(s):  
B. E. WILDE ◽  
J. S. ARMIJO
Keyword(s):  
Steady State ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Stainless Steels ◽  
High Purity ◽  
Composition Range ◽  
Austenitic Stainless Steels ◽  
Dissolution Kinetics ◽  
Kinetics Of ◽  
Partial Process

Abstract The influence of silicon and manganese on the electrochemical and corrosion behavior of a high purity austenitic 14Cr/14Ni-balance Fe alloy has been studied. Over the composition range 50–41, 500 ppm Si, no effect was observed on the kinetics of the anodic or cathodic partial processes. Addition of manganese over the range 5–26,300 ppm accelerates the anodic dissolution kinetics in the active range of potentials and also the steady-state corrosion rate in 1N̄ H2SO4 due to its influence on the kinetics of the cathodic partial process. The nature of this effect is analyzed according to electrode kinetic concepts from which it is shown that manganese changes the value of the electrode process transmission coefficient. Alloys containing manganese and silicon over large concentration ranges are extremely resistant to stress corrosion cracking in boiling 42 w/o MgCl2.

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