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二氧化鋯的熔點高達2700攝氏度，是自然界中耐火性能好的材料之一。它的導熱性能差，但導電能力很強，抗蝕能力也很強，即使加熱到1900多攝氏度也不會跟熔融的鋁、鐵、鎳、鉑等金屬、硅酸鹽和酸性爐渣發生作用。因而可以用它來制造熔煉貴金屬的坩堝、耐火管、耐熱玻璃和耐熱搪瓷等。
它除了應用于耐火材料和陶瓷顏料之外，已經成為電子陶瓷、功能陶瓷以及人造寶石的主要材料，在高科技領域的應用日益廣泛。二氧化鋯已經被證實成功用于航天飛機的熱屏蔽。保時捷汽車的制動盤和人造傳輸帶。它的強韌遠大于其它所知的非金屬烤瓷。
二氧化鋯全瓷牙電腦輔助制作，緊密準確，不僅具有超強韌性的獨特優勢，而且還擁有全瓷系統外表色澤逼真、堅固耐磨、生物相容性好（不刺激口腔組織，完全避免了普通烤瓷可能產生的牙齒邊緣發青、不密合、牙齦發炎過敏等情況）、易清潔等優勢。（圖/文www.xahjbz.com）
中譯英：
Two zirconia melting point as high as 2700 degrees Celsius in nature, is one of the best materials refractory performance. Its thermal performance is poor, but the conductive capability is very strong, the corrosion resistance is also very strong, even when heated to 1900degrees Celsius never with molten aluminum, iron, nickel, platinum, silicate and acidic slag action. Thus it can be used to manufacture smelting of precious metal crucible, refractory tube, heat-resistant glass and heat resistant enamel etc..
In addition to its application in refractory and ceramic pigments, has become the electronic ceramics, functional ceramics and man-made gems are main material, is widely used in high-tech fields. Two zirconia have been proved successful in the shuttle's thermal shield. Porsche car brake disc and artificial transmission belt. Its strength is much larger than other known of porcelain fused to metal.