The nanometer anatase TiO2 powder was prepared by hydrolysis and homogeneous precipitation.The most favorable operating conditions were also studied.The morphology,size,crystal shape and specific surface area of nanometer TiO2 powder waere characterized by TEM,XRM,BET and DTA-TG methods.The results show that the TiO2 particle appears spherical shape,the average particle diameter is 20nm,and the specific surface area is 90m2/g.The new technology is simple to operate with low cost and is easy to be industrialized.The obtained nanometer titanium dioxide powder can meet the needs of markets.

Non-uniform structured JZ06-brand alloy is developed.Compared with similar products,the developed alloy has come up to the domeslic advanced level in respect of its performance and service data with similar performance to that of some foreign alloys.

The process flowsheet for commercial beryllium oxide from high-F/high-Mg beryl concentrates is described in this paper.Problems and causes thereby as weu as improving measures and effects are also introduced.

Based on the sampling design for Ta/Nb ore dressing flowsheet and sampling operating practice,the paper investigated the problems and their solutions during the RE ore deposit samping design and sampling operation.

Analysis is made of the characteristics of cemented carbide industry in China.The paper describes the features of the technical innovation by the medium and small-size cemented carbide factories with emphasis stressed on coordination with the state innovation system in combination with market orientation.It is pointed out that the medium/small-size cemented carbide factories should base the innovation on anologue innovation,creating conditions for cooperative innovation.Description is also made of the major issues to be addressed.

The paper lntroduced research and application of solvent impregnated resin in extraction of scandiumAs a new kind of extractant,solvent impregnated resins can notably improve the capacity and the efficiency of scandium extraction,and is suitable in the ore pulp extraction that the general liquid extraction is hard to apply,indicating its unique good application prospect.

In this paper,the rescent research trend on precipitation phase in tungsten heavy alloys was revieved.At the same time,methods of precipitation strengthening and achievements obtained were also described.In the end some advice on the development of precipitation phase strengthening was proposed.

This paper describes the compaction of the powder in rigid mould and the development of densifying and deformation mechanism during this process.The emphases are also put on the difference of plastic deformation mechanism between porous alloy and densified alloy,deformation of the former affected greatly by the oxide film and porosity.In addition,the author also presents the advanced methods of plastic deformation of the porous materials,especially a popular yield model.

This paper describes ball-milling surface modification method and properties of Zr-based hydrogen storage alloy electrode.

The paper describes and analyzes the W Consumption and demand in recent years both at home and abroad.Preliminary prediction is made of W consumption trend and market demand.