Title page for etd-0704116-104434

URN	etd-0704116-104434	Statistics	This thesis had been viewed 331 times. Download 4 times.
Author	Ke-Lun Wang
Author's Email Address	je2499@yahoo.com.tw
Department	Institute Of Mechanical Engineering
Year	2015	Semester	2
Degree	Master	Type of Document	Master's Thesis
Language	zh-TW.Big5 Chinese	Page Count	110
Title	Effect of added nano AlN on the microstructure and mechanical properties of the vitrified bond diamond tools
Keyword	Mechanical properties. Sintering parameters Nano Aluminum nitride Vitrified bond diamond tools Microstructure Microstructure Vitrified bond diamond tools Nano Aluminum nitride Sintering parameters Mechanical properties.
Abstract	ABSTRACT The goals of this study were to investigate the influence of added nano-AlN powders on the microstructure and mechanical properties of the vitrified bond diamond tools. The sintering temperature of the specimens was 660C and isothermal holding for 90 min. All of the sintered specimens were examined using an X-ray diffraction analyzer, a Raman spectrometer analyzer, a scanning electron microscope, a hardness test and a grinding ratio test. DSC analysis showed that the glass transition temperature (Tg) for the borosilicate glass powder used in this study was approximately 716C. XRD patterns showed no phase other than diamond and AlN were observed. A sharp peak at 1330.2 cm-1 can be observed which belongs to the crystalline diamond C-C bond D-band signal. Adding of 10 vol.% to 20 vol.% nano-AlN powders in the vitrified bond diamond tools protect the diamond crystal during sintering process. SEM image shows that specimen added with 10 vol.% nano-AlN powders had excellent coverage and wetting between the diamond grits and vitrified bond. The brittle fracture of cleavage was observed on the vitrified bond surface after grinding test, and allowing the diamond grit to fall off after abrasion. Therefore, the highest grinding ratio of the diamond tool and the best surface roughness of work piece were achieved. Keywords: Nano Aluminum nitride, Sintering parameters, Vitrified bond diamond tools, Microstructure, Mechanical properties.
Advisor Committee	Kuan-Hong Lin - advisor Ren-Qing Huang - co-chair YOU-TENG CAI - co-chair
Files	etd-0704116-104434.pdf indicate in-campus access immediately and off-campus access at 2 years
Date of Defense	2016-05-02	Date of Submission	2016-07-05

Back to Results