For users of grinding beads, even if they select products with reference to these aspects, they may fall into some misunderstandings, resulting in misjudgment of the quality of the beads.
Misunderstanding 1: The higher the zirconium content of the zirconium beads or the higher the purity of the zirconium beads, the better the quality
This concept of quality based on purity or composition may be borrowed from some industries such as bulk raw materials and precious metals, but it is not fully applicable to zirconium beads. First of all, for the material of yttrium-stabilized zirconia, yttrium oxide is a necessary additive for stabilizing the crystal phase, and different addition amounts can obtain different crystal phases of zirconia. In order to obtain the tetragonal zirconia with the best mechanical properties, about 5% Y2O3 is the best addition range. Therefore, blindly pursuing higher zirconium content cannot obtain the optimal product. Secondly, ceramic materials science attaches great importance to formulas. A large number of studies have shown that the addition of certain trace elements can help improve the performance of yttrium-stabilized zirconia ceramics. Therefore, it is not appropriate to consider all components other than Y2O3-ZrO2 as harmful impurities. Pursuit of pure error.
Myth 2: The rounder the zirconium beads, the better the quality
Roundness, as one of the physical indicators of zirconium beads, needs to be paid attention to, and it is also one of the production control points of zirconium bead manufacturers. The roundness is very low, or a large number of special-shaped beads (mother and daughter beads, drop-shaped beads, etc.) are mixed, indicating that there are problems in the production process of zirconium beads. But on the other hand, does a very round bead mean that it is of good quality? the answer is negative. Because the two fundamental requirements we pursue in use, non-brittleness and low wear, are not directly related to roundness, but the control of internal structure and mechanical properties is more critical. If you blindly pursue higher roundness when zirconium beads are formed, other more important properties may be compromised. Therefore, the roundness of zirconium beads can be said to be a necessary but not sufficient condition for quality, and must not be regarded as the only criterion for the quality of zirconium beads.
Misunderstanding 3: The better the written technical indicators provided, the better the quality of the zirconium beads
This misunderstanding may appear from time to time in all walks of life. When there is a need to purchase a product, most serious buyers will first carefully study and compare the written technical parameters of the product. In order to "stand out" to attract the audience faster, some manufacturers may make an article on the written indicator data, exaggerating the numerical performance of the product without actual measurement. Although this kind of behavior cannot stand the long-term test of the market, it also causes a lot of disturbance and trouble to product customers, especially those with less experience. In order to get out of this misunderstanding, SIP "Dr. Zirconium" recommends that our customers make real knowledge through practice and evaluate beads through professional testing methods. The more convenient and quick way is to observe the particle size and appearance of zirconium beads microscopically, and use small grinding equipment to test the beads. Grinding zirconium beads, etc.
