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Filtering by: Creator Gibbs, Kenneth C. Degree Field Chemical Engineering Subject Silicon nitride -- Synthesis

Kinetics of nano-sized Si₃N₄ powder synthesis via ammonolysis of SiO vapor

Creator:

Vongpayabal, Panut

Abstract:

An 89 mm-diameter vertical tubular-flow reactor was used to study the kinetics of nano-sized silicon nitride powder synthesis via the animonolysis of SiO vapor at temperatures ranging from 1300°C to 1400°C. The SiO generation rate was controlled by adjusting the mass of SiO particles initially charged in the SiO generator,...

Resource Type:

Dissertation

Full Text:

1000°- 1600°C ELm and Kimura, 1996]. The reaction has negative values of Gibbs energy change, ranging
Flow characterization of multiple-tube reactors for synthesis of nano-sized silicon nitride powder via silicon monoxide ammonolysis

Creator:

Vas-Umnuay, Paravee

Abstract:

Concentrically arranged multiple-tube reactors with different dimensions were built for synthesizing nano-sized silicon nitride powder via the ammonolysis of SiO vapor. The reaction was operated at temperatures ranging from 1350 to 1400°C and pressure slightly above atmospheric pressure. Silicon monoxide (SiO) vapor was generated by charging argon gas through a...

Resource Type:

Masters Thesis

Full Text:

NOMENCLATURE C gas concentration D diffusion coefficient G Gibbs free energy k rate constant of NH3
Kinetic study on the synthesis of Si₃N₄ via the ammonization of SiO vapor

Creator:

Lin, Dah-cheng

Resource Type:

Dissertation

Full Text:

at 1350 °C under different conditions of NH3 dissociation 159 8.1 Gibbs free energy changes of