NO Sensing Capability of Pt-Au-SnO Composite Nanoceramics at Room Temperature.

Composite ceramics of metal oxides and noble metals have received much attention for sensing reducing gases at room temperature. Presently, composite ceramics of SnO and noble metals have been prepared and investigated for sensing oxidizing NO at room temperature. While dramatic increases in resistance were observed for both 1 wt% Pt-SnO and 5 wt% Au-SnO composite nanoceramics after being exposed to NO at room temperature, the largest increase in resistance was observed for 1 wt% Pt-5 wt% -Au-SnO composite nanoceramics among the three composites.

Grinding of alumina ceramic with microtextured brazed diamond end grinding wheels.

Brazed monolayer diamond grinding wheels have advantages of a high abrasive bonding strength, high protrusion, and a large chip disposal space. However, it is difficult to prepare ordered and fine-grained brazed diamond grinding wheels. This study presents a new method for grain-arranged, brazed diamond grinding wheels with microtextures with similar performance to ordered and fine-grained brazed diamond grinding wheels.