Title page for etd-0710114-162330

URN	etd-0710114-162330	Statistics	This thesis had been viewed 486 times. Download 2 times.
Author	Zun-Kal JHUANG
Author's Email Address	gn88188@htomail.com
Department	Institute Of Mechanical Engineering
Year	2013	Semester	2
Degree	Master	Type of Document	Master's Thesis
Language	zh-TW.Big5 Chinese	Page Count	93
Title	Effects of added nano titanium powder on the microstructure and mechanical properties of vitrified bond diamond tool
Keyword	nano Ti powder Vitrified bond diamond tools Microstructure Mechanical properties. Mechanical properties. Microstructure Vitrified bond diamond tools nano Ti powder
Abstract	This study examined the effects of added nano titanium powder on the microstructure and mechanical properties of a vitrified bond diamond tool. The specimens composed of various percentage nano Ti powder, borosilicate glass and diamond grits were sintered at 710 ℃ for 90 min. The thermal analysis, X-ray diffraction analysis, Raman spectra and SEM were analyzed for these specimens. The shrinkage percentage, hardness, grinding ratio, and surface roughness against a cemented carbide work piece were examined along with microstructural analysis based on secondary electron images. TGA analysis shows the diamond grit burn out at the temperature over 800℃. DSC analysis shows a glass transform temperature (Tg) at 716℃. Raman spectrum analysis shows the D-band signal at 1330.4 cm-1. According to the analyze result of XRD and Raman, the crystal structure of diamond tools maintained and not influenced by the added of nano Ti powder. In this study, the specimen that added with 20 vol.% nano Ti powder show the optimal grinding-ratio performance, however, the large feeding speed decreased the tools life and worsen the workpiece’s surface roughness.
Advisor Committee	Kuan-Hong Lin - advisor Jen-Ching Huang - co-chair Yuo-Tem Tsai - chair
Files	etd-0710114-162330.pdf indicate in-campus access only
Date of Defense	2014-07-02	Date of Submission	2014-07-16

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