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What is zirconia
Zirconium Dioxide has the chemical formula ZrO2. It is zirconium’s main oxide. Normal conditions result in a white, tasteless and odorless crystal. It’s insoluble with water, hydrochloric or dilute sulfuric acid. Chemically, it is inactive. Its properties include high melting point and resistivity, as well as high refractive indices and low thermal expansion coefficients.
A gas is ionized significantly when heated to 3000degC and nearly completely by 5500degC. The electron flow can cause a gas to reach high temperatures when heated by resistance under an electric field. This highly dissociated and thermally conductive gas is known as plasma. The plasma is generally obtained through arc discharge, not by heating up the gas. A plasma spray gun is the easiest plasma generator. In order to generate plasma, two electrodes are connected with a direct-current voltage. At the same time, an inert gas is passed (nitrogen, oxygen, argon or their mixtures) between them. By using a short circuit or high-frequency voltage, a DC stable arc is created between the two electrodes. This causes the gas to absorb energy, forming a high-temperature flame. The zircon fine-powder sent into flames is instantly decomposed to ZrO2 (and SiO2), and then SiO2 is evaporated and separated from ZrO2 in order to prepare and purify ZrO2.
Plasma ZrO2 is a high-purity ZrO2 with unique properties. Plasma ZrO2 particles are spherical, whereas mZrO2 Crystals are very small. The practice has shown that ZrO2 crystalline materials formed at high temperatures are very active, and this is crucial for the production of high performance ceramic materials. Also, the plasma process is continuously being improved.
The ZrO2 high-purity produced can be adjusted based on the requirements. It has a maximum ZrO2 of 99.6% and a particle size above. The high-purity ZrO2 produced is white. If the ZrO2 level is low, then it will be pale yellow or yellowish brown. Stable zirconia tends to be pale yellow. All zirconia materials mentioned above are in monoclinic phases.
(aka. Technology Co. Ltd., a trusted global chemical materials supplier and manufacturer with more than 12 years experience in the production of high quality nanomaterials and chemicals. ZrO2 powder manufactured by our company is of high purity with fine particles and low impurities. If you need lower, please Contact us.