This paper introduces basic concept and new sintering principle of new-type ce- ramics materials,and conducts analyse and study to property of new-type ceramics,the study indi- cated that it is feasible that the new-type ceramics which are used to design and manufacture io- dine salt packer mechanical spares replace metal materials.
According to sintering theory, the distributing model of dispersion particle and the computing residual stress model were built, and residual stress was computed at one - dimension direction. The mechanics of dispersion SiC particle toughing alumina was researched in theory, and the influence factor of residual stress was analyzed. Therefore theoretical reference of how to choose SiC particle size and quantity was provided.
The effects of sintering technology parameters on property of the large area AIN substrate were investigated . An aluminum nitride ceramic substrate has been successfully developed, which has a high thermal conductivity (190 w/m·K) and large substrate area( 140mm x 90mm) . The camber of Aluminum Nitride substrates is 20μm/mm.
The effects of sintering technology parameters on property of the large area AlN substrate were investigated . An aluminum nitride ceramic substrate has been successfully developed, which has a high thermal conductivity (190 w/m·K) and large substrate area(140mm×90mm). The camber of Aluminum Nitride substrates is 20μm/mm.
On the basis of diffusional sintering theory, an evaluation is made of the critical specimen size, below which increased shrinkage is observed owing to the effects of the geometric dimensions of the article be sintered.
Contemporary rheological sintering theory is shown to be a reliable basis for the engineering design and control of sintering as the key manufacturing process in powder metallurgy and ceramics technology.
A kinetic equation for compaction with liquid-phase sintering is found on the basis of rheological sintering theory.
The mean grain size in relation to volume proportion of liquid phase in liquid-phase sintering is calculated from rheological sintering theory.
The discussion links the results of pellet induration research with sintering theory, developed in support of powder metallurgy and ceramics.
The sintering of bearing material made of iron bronze,by addition of iron powder into tin bronze powder and the relation between theamount of iron added and shrinkage as well as abradability are narrated inthis paper. It is concluded that the optimum amount of iron powder added is40%. According to the principle of sintering of Fe-Cu alloy and the phasedisgram, we obtain that the sintering temperature is increased with theicrease of iron powder added and the optimum sintering temperature is 820～850℃.
This paper discussed the technology background, principle, and characteristics of gas pressure sintering (GPS),and discribed the key of sintering process of GPS and its application in the manufacturing of materials.