| 摘要 |
<p>This disclosure relates to a flue providing improved heat transfer comprising an inner layer and an outer layer, wherein the inner layer comprises a high thermal conductivity ceramic having a thermal conductivity of at least 91 W/m-K (@300K) and a Moh's hardness of at least 6.5, and comprises a plurality of protuberances 13, depressions 14 or both; and wherein the inner layer 12 and the outer layer 11 are in substantially continuous, thermally conductive contact. Titanium dioxide particles having improved particle size, gloss, undertone, tinting strength and hiding power are famed using the above described flue.</p> |
