Author: Ramesh Raghunathan
Publisher:
ISBN:
Category :
Languages : en
Pages : 942
Book Description
Synthesis, Characterization, and Processing of Powders, Densification Behavior, Microstructure, and Properties for Silica/silicon Nitride Prepared from Microcomposite Particles
Author: Ramesh Raghunathan
Publisher:
ISBN:
Category :
Languages : en
Pages : 942
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 942
Book Description
Dissertation Abstracts International
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 862
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 862
Book Description
Effect of Composition on the Processing and Properties of Sintered Reaction-bonded Silicon Nitride
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
The type of silicon powder and sintering additive were found to influence the processing and final mechanical properties of sintered reaction bonded silicon nitride. High purity silicon powders produced low [alpha]-Si3N4 content during nitridation. The Si powder type had no apparent effect on densification. More complete nitridation and higher room temperature mechanical properties were observed for the Si powders with higher Fe contents. However, the higher Fe contents resulted in greater high temperature strength degradation and so there was better high temperature strength retention with the higher purity Si. High [alpha]-Si3N4 contents were found after nitridation with [alpha]-Si3N4 seeded materials and with MgO-Y2O3 as the sintering additive. Densification was inhibited by refractory additives, such as Y2O3-SiO2. The highest room temperature strength and fracture toughness values correlated to high nitrided [alpha]-Si3N4 contents. The high temperature strength behavior was similar for all additive types.
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
The type of silicon powder and sintering additive were found to influence the processing and final mechanical properties of sintered reaction bonded silicon nitride. High purity silicon powders produced low [alpha]-Si3N4 content during nitridation. The Si powder type had no apparent effect on densification. More complete nitridation and higher room temperature mechanical properties were observed for the Si powders with higher Fe contents. However, the higher Fe contents resulted in greater high temperature strength degradation and so there was better high temperature strength retention with the higher purity Si. High [alpha]-Si3N4 contents were found after nitridation with [alpha]-Si3N4 seeded materials and with MgO-Y2O3 as the sintering additive. Densification was inhibited by refractory additives, such as Y2O3-SiO2. The highest room temperature strength and fracture toughness values correlated to high nitrided [alpha]-Si3N4 contents. The high temperature strength behavior was similar for all additive types.
Fabrication of Heat-Resistant and Plastic-Formable Silicon Nitride
Author: Toshiyuki Nishimura
Publisher: Springer
ISBN: 4431553843
Category : Technology & Engineering
Languages : en
Pages : 53
Book Description
In this book, improvements in the heat resistance of silicon nitride (Si3N4) ceramics using grain boundary control and in plasticity at high temperatures using grain size control in order to reduce the cost of shaping Si3N4 are described. The heat resistance of Si3N4 is improved by mixing a slight amount of sintering additive as an impurity into the original material powder. The author presents his findings on the high heat resistance of Si3N4. The author also develops a new fabrication method for Si3N4 nano-ceramics that produces high plastic formability. The method developed offers two improved points in grinding and sintering processes. The author found that the plastic formability of Si3N4 nanoceramics is dependent on load stress; the results of his research are detailed in this book.
Publisher: Springer
ISBN: 4431553843
Category : Technology & Engineering
Languages : en
Pages : 53
Book Description
In this book, improvements in the heat resistance of silicon nitride (Si3N4) ceramics using grain boundary control and in plasticity at high temperatures using grain size control in order to reduce the cost of shaping Si3N4 are described. The heat resistance of Si3N4 is improved by mixing a slight amount of sintering additive as an impurity into the original material powder. The author presents his findings on the high heat resistance of Si3N4. The author also develops a new fabrication method for Si3N4 nano-ceramics that produces high plastic formability. The method developed offers two improved points in grinding and sintering processes. The author found that the plastic formability of Si3N4 nanoceramics is dependent on load stress; the results of his research are detailed in this book.
Synthesis and Some Properties of Fibrous Silicon Nitride
Author: Robert C. Johnson
Publisher:
ISBN:
Category : Silicon nitride
Languages : en
Pages : 34
Book Description
Publisher:
ISBN:
Category : Silicon nitride
Languages : en
Pages : 34
Book Description
Silicon Nitride
Author: Emiliano Jose Hierra
Publisher: Nova Science Publishers
ISBN: 9781619428652
Category : Silicon nitride
Languages : en
Pages : 0
Book Description
Silicon nitride (Si3N4) ceramic is used in numerous applications because of its superior properties, such as high-temperature strength, good oxidation resistance and low thermal expansion coefficient. In this book, the authors present current research in the study of the synthesis, properties and applications of silicon nitride. Topics include the optical and vibration properties of silicon rich nitride; high temperature oxidation of silicon nitride based ceramics; low temperature preparation of phosphate bonded silicon nitride ceramics with high mechanical strength; the SPS-sintering process and use of ceramics for high-temperature engineering applications; synthesis and properties of silicon nitride coatings; and the use of silicon nitride as biomaterial.
Publisher: Nova Science Publishers
ISBN: 9781619428652
Category : Silicon nitride
Languages : en
Pages : 0
Book Description
Silicon nitride (Si3N4) ceramic is used in numerous applications because of its superior properties, such as high-temperature strength, good oxidation resistance and low thermal expansion coefficient. In this book, the authors present current research in the study of the synthesis, properties and applications of silicon nitride. Topics include the optical and vibration properties of silicon rich nitride; high temperature oxidation of silicon nitride based ceramics; low temperature preparation of phosphate bonded silicon nitride ceramics with high mechanical strength; the SPS-sintering process and use of ceramics for high-temperature engineering applications; synthesis and properties of silicon nitride coatings; and the use of silicon nitride as biomaterial.
Ceramic Abstracts
Author: American Ceramic Society
Publisher:
ISBN:
Category : Ceramics
Languages : en
Pages : 1000
Book Description
Publisher:
ISBN:
Category : Ceramics
Languages : en
Pages : 1000
Book Description
International Aerospace Abstracts
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 980
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 980
Book Description
Fabrication and Properties of Silicon Compounds
Author: F. F. Lange
Publisher:
ISBN:
Category :
Languages : en
Pages : 102
Book Description
A study was made to: Investigate the relation between strength, fracture energy, and microstructure; basically, it was the purpose of this task to determine why silicon nitride is so strong relative to other ceramics; Determine the hot-pressing behavior of silicon nitride with an emphasis on the role of the additive required to densify silcon nitride powder; Study the densification of silicon nitride by the powder-vehicle hot-pressing technique and dtermine the limitations of this technique; Determine the dielectric properties of reaction-sintered and hot-pressed silicon nitride between 1-10 GHz. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 102
Book Description
A study was made to: Investigate the relation between strength, fracture energy, and microstructure; basically, it was the purpose of this task to determine why silicon nitride is so strong relative to other ceramics; Determine the hot-pressing behavior of silicon nitride with an emphasis on the role of the additive required to densify silcon nitride powder; Study the densification of silicon nitride by the powder-vehicle hot-pressing technique and dtermine the limitations of this technique; Determine the dielectric properties of reaction-sintered and hot-pressed silicon nitride between 1-10 GHz. (Author).
Preparation and Properties of Silicon Nitride Based Materials
Author: D.A. Bonnel
Publisher: Trans Tech Publications Ltd
ISBN: 3035704457
Category : Technology & Engineering
Languages : en
Pages : 310
Book Description
i
Publisher: Trans Tech Publications Ltd
ISBN: 3035704457
Category : Technology & Engineering
Languages : en
Pages : 310
Book Description
i