Bulk denseness of micronized pulverise is the ratio of unit loudness in the state of cancel aggregation and grainy forms. The intensity in natural collection posit is the gap between particles and particle size. The packing material density is an world-shattering technical foul parameter of Si powder. It means the micronized pulverise flows into the in particular ways and substance. The ratio between tone and volume can be verbalized in g cm3.

Compared with farinaceous particles of abradant bulk denseness measure methods, measure of differential packing denseness are much more complex, because the micronized particle is relatively modest, the adhesive material squeeze between the particles, rubbing and particle angle at an enjoin of order of magnitude, subatomic particle each surface assimilation, the shaping of agglomeration. The smaller the subatomic particle , the agglomeration of the more serious. Measure the bulk density of Si pulverise particles must be dispersed, it is necessary to maintain a certain squeeze, when the wedge is greater than the adhesive material squeeze and friction between the micronized particles, micronized particles will part, forces generated by a variety show of ways to reach the physics vibration.

The subatomic particle form is posed by the various points on the sketch of a particle bound image. An important sport of the form of the particles of silicon powderise, atomic number 14 carbide powderize, and micronized subatomic particle shape straight affects the mobility of the atomic number 14 carbide, the wadding denseness, surface oxidisation. Observation and study of subatomic particle form and come up social system can be determined by physical science microscopy, negatron transmittance microscopy and scanning electron microscopy, the thick silicon pulverize with a magnifying glaze over or the unassisted eye.

Micronized particles have a variety show of shapes. They can not have asseveration that which is the most appropriate shape. Even if the same pulverise product way will create different particle form, the main resolve of multi-line cutting of silicon carbide pulverise space irregular, is the best and mop up blunt form.

All kinds of powder bulk denseness are reduced with the simplification of particle size when subatomic particle size is rock-bottom to a certain extent, the packing material denseness will be less than 000 g cm3. This is because the gap between the particles increases as the particle size decreases, the micronized particles step-up the surface area. Under normal circumstances, the micro pulverise bulk density is greater than the packing material denseness of green atomic number 14 powderise, the packing denseness of putting green silicon pulverise is greater than the packing material denseness of black atomic number 14 carbide pulverise.

Sharp atomic number 14 powderize for the same model than the blunt silicon carbide plates powderise subatomic particle of the large gap between the sharp particles, so that the wadding density of small; between the different models, the packing denseness decreases with the reduction of particle This is because the gap between the particles increases as the subatomic particle size decreases, the micronized particles increase the come up area.

Different packing densities of raw stuff metallic element powderise have substantial remainder. In the same raw materials and subatomic particle size, packing material denseness of green Si carbide powderise can discriminate the grain type of micronized pulverise. In different particle size case, with the particle diameter becomes smaller, the packing material denseness of putting green silicon carbide powderise step by step decreases. When the particle is reduced to a certain extent, the bulk density is less than 1.000 g cm3.