Bag soil,filling rock and mixed soil are usually used as material of reclamation dam.

The process for preparing electrodeposited diamond tools by using nanocrystalline Ni-Co alloy deposit as a new matrix material and the features are presented.

A study on the calcined characteristics of gangue and making light wall material;

Study on wall material green degree evaluation model;

Developing coal gangue used brick-making and advancing the reform of wall materials;

The fundamentals of dealloying are introduced,and the development of nanoporous metals prepared by dealloying is summarized from the following three aspects:material systems in dealloying,starting material preparation and properties of nanoporous .

The material system of laser clad metal/ceramics compositecoatings and the behaviour of the ceramic particles in the course of laser cladding are summarized.

The material system and microstructuralcharacteristic of laser clad composite coatings are comprehensively analyzed.

Experimental research on erosion and corrosion of WC-base matrix materials for drill bits under impingement of drilling mud;

One important index of the working life and performance of diamond tools is the retention intensity of diamonds in the diamond tools,to a great extent,the high-effective applying of which is determined by the mechanical properties of the matrix materials in the actual practice.