Of these, the silicate host phosphors with UV, nUV or blue-UV lights in wider excitation wavelength range for white-emitting is one of the innovative and competitive approaches.

The expansion behavior of typical siliceous carbonate(Spratt limestone) autoclaved in LiOH solution were studied in this paper, the morphologies and chemical composition of the products produced by reaction of siliceous carbonate with LiOH were studied through SEM and EDS.

The behavior characteristic of lithium ion during the procedure of alkali-aggregate reaction has been thoroughly studied on the base of investigation of mineral characteristic of siliceous carbonate aggregate by X-ray diffraction analysis,chemical composition analysis and polarization microscope analysis.

The hydroxyl silicate was surface-modified and dispersed in water, and mixed with water-soluble lubricant by different proportion.

By the instance of hydroxyl silicate mineral powder additives application on motor,the gas escape amount of bent axle box was measured,and based on the decrease feature of gas escape amount,it demonstrates that hydroxyl silicate mineral powder additive possesses self-repairing performance,and proves that the method of examination in-situ is valid.

An MM-200 friction and wear tester was performed to evaluate the friction and wear behavior of 1045 steel/ductile cast iron pair under the lubrication of 650SN oil and the 650SN containing hydroxyl silicate particulates as the additive (The latter oil specimen was coded as KF-1).