Effects of Sr and B additions on the solidification temperature range and fluidity of AZ91 magnesium alloy have been studied by means of DSC and the fluidity test.

The influence tendency of adding contents of these elements to solidification temperature, solidification range, conductance rate, solder joints tensile and shear strength has been tested and discussed.

The rheologic mechanical behavior of alloys in the liquid/solid coexistence zone is revealed through rheo-logic tests.

The result shows that the DCS was found to be relevant to the thermal parameters such as solidification time,cooling rate and thermal gradient.

The solidification time of the three supporting materials (carboxy-methyl cellulose, polyvinyl alcohol, starch) was discussed in the article.

Based on the direct finite difference, a 3-dimensional numerical simulation model for quickly calculating the solidification time of casting to get the distributing rule of hot sport has been developed by casting modulus method and heat transfer method.

In the paper,the influences of different levels α-TCP to β-TCP ratio on cement's setting time and compressive strength are studied by optimizing α-TCP system cement's formula.

The paper studys the effects of different types hardening liquid,different ratio of powder and liquid and different powder on the setting time and compressive strength of it,by optimizing the system of α-TCP phosphate cement,and chooses -HAP/α-TCP as better powder、citric acid+potassium citrate+propenoic acid-itaconae as good hardening liquid and 2.

Objective To explore the changes of setting time,mechanical properties and microstructrue of composite of various CPC-MTX,and to provide basic results of the bone filling materials that can suppress recur- rence of bone tumors.