Show simple item record

dc.contributor.advisorZerda, T. Waldek
dc.contributor.advisorZhao, Y.
dc.contributor.authorQian, Jiangen_US
dc.date.accessioned2019-10-11T15:11:12Z
dc.date.available2019-10-11T15:11:12Z
dc.date.created2003en_US
dc.date.issued2003en_US
dc.identifieraleph-995984en_US
dc.identifierMicrofilm Diss. 827.en_US
dc.identifier.urihttps://repository.tcu.edu/handle/116099117/34138
dc.description.abstractIn this dissertation work, novel bulk diamond composites with nano-size grain and nanocrystalline SiC bonding were sintered under high pressure-high temperature (HP-HT) conditions. While preserving the superior hardness, wear resistance of micron-composites, nano-composites have higher strength and fracture toughness due to effective blocking of microcrack propagation and dislocation movement by the nanocrystalline grains. New preparation method, wet mixing and high-energy ball milling, have been used to make starting materials to avoid the self-stop process due to pore closure in HP-HT liquid phase sintering. Key factors influencing the dynamics of the reaction between diamond and silicon, such as diamond graphitization process, phase composition and stress-strain, were thoroughly studied with Raman spectroscopy, x-ray diffraction, SEM and TEM techniques. Mechanical properties of the composites were characterized by ultrasonic interferometer and microindentation hardness measurements. Nanostructured composites represent a new field of fundamental science and manifest potential application in multiple industries.
dc.format.extentx, 114 leaves : illustrationsen_US
dc.format.mediumFormat: Printen_US
dc.language.isoengen_US
dc.relation.ispartofTexas Christian University dissertationen_US
dc.relation.ispartofAS38.Q52en_US
dc.subject.lcshDiamonds, Industrialen_US
dc.subject.lcshSilicon carbideen_US
dc.subject.lcshComposite materialsen_US
dc.subject.lcshSinteringen_US
dc.titleDiamond/silicon carbide composites sintered under high pressure-high temperature conditions / by Jiang Qian.en_US
dc.typeTexten_US
etd.degree.departmentDepartment of Physics and Astronomy
etd.degree.levelDoctoral
local.collegeCollege of Science and Engineering
local.departmentPhysics and Astronomy
local.academicunitDepartment of Physics and Astronomy
dc.type.genreDissertation
local.subjectareaPhysics and Astronomy
dc.identifier.callnumberMain Stacks: AS38 .Q52 (Regular Loan)
dc.identifier.callnumberSpecial Collections: AS38 .Q52 (Non-Circulating)
etd.degree.nameDoctor of Philosophy
etd.degree.grantorTexas Christian University


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record