二氧化锆的熔点高达2700摄氏度，是自然界中耐火性能好的材料之一。它的导热性能差，但导电能力很强，抗蚀能力也很强，即使加热到1900多摄氏度也不会跟熔融的铝、铁、镍、铂等金属、硅酸盐和酸性炉渣发生作用。因而可以用它来制造熔炼贵金属的坩埚、耐火管、耐热玻璃和耐热搪瓷等。
它除了应用于耐火材料和陶瓷颜料之外，已经成为电子陶瓷、功能陶瓷以及人造宝石的主要材料，在高科技领域的应用日益广泛。二氧化锆已经被证实成功用于航天飞机的热屏蔽。保时捷汽车的制动盘和人造传输带。它的强韧远大于其它所知的非金属烤瓷。
二氧化锆全瓷牙电脑辅助制作，紧密准确，不仅具有超强韧性的独特优势，而且还拥有全瓷系统外表色泽逼真、坚固耐磨、生物相容性好（不刺激口腔组织，完全避免了普通烤瓷可能产生的牙齿边缘发青、不密合、牙龈发炎过敏等情况）、易清洁等优势。（图/文www.yxwdcy.com）
中译英：
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.