The invention relates to a preparation method for a
ceramic bond
diamond grinding wheel and belongs to the technical field of
ceramic materials. A
ceramic bond prepared by the invention can realize low-temperature
sintering of the
diamond grinding wheel; the ceramic bond has the
thermal expansion performance with
a diamond abrasive material, so that thermal stress is generated between
diamond abrasive particles and the ceramic bond during working of the
grinding wheel can be avoided or reduced, and the bonding holding capacity of the bond to the diamond
abrasive particles is improved; the ceramic bond has relatively high
toughness, and with appropriate
toughness, the
cutting effect of a micro-edge of the diamond abrasive material can be guaranteed, the
impact resistance during grinding ofthe
grinding wheel is improved, and the shape stability of the
grinding wheel is ensured; and the ceramic bond has good
wetting coating performance to the diamond abrasive material, so that improvement on the
bonding strength between the ceramic bond and the diamond abrasive material as well as the overall strength of the
grinding wheel are facilitated. For the preparation method, by adding
lanthanum oxide rare-earth
metal oxides or other subgroup
metal oxides, the glass
network structure can be effectively optimized, the properties, including the strength and the
hardness, of the ceramic bondare improved, and the grinding performance of
a diamond grinding tool is enhanced.