the improvement of ball mill heat exchanger in ethiopia
• Ball milled Ba x Yb y Co 4 Sb 12 initial transport properties – ZT 13 at 873K consistent with previous report – 40 improvement over ntype PbTe in the 873K 373K temperature range – ZT improvement over dopedCoSb 3 appears to be due to •Lower thermal conductivity double rattler •But also higher carrier mobility 00 01 02 03 04 05 06 07...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.