Wear resistance of ceramic plates is one of the most studied properties and has been explored in many different applications. Wear resistance generally refers to the ability of a material to resist material loss due to certain mechanical actions such as wear and friction. In this article, the wear resistance of Macor Ceramics ceramic materials in ceramic substrates can be understood, and Xiaozhan will focus on wear testing of ceramic plate materials, their importance, and common methods of ceramic wear testing.
1. What is the ceramic substrate wear test?
It is important to note that ceramic materials can be wear-resistant and tough, but not Silicon Nitride Parts particularly hard, while hard materials can be wear-resistant but not completely tough. In other words, wear resistance is not synonymous with toughness or hardness of a material. The causes of wear can be divided into adhesive wear, scratch wear, surface fatigue wear and corrosion wear.
The essence of ceramic plate material wear testing or wear testing, in general, is to determine the ability of the ceramic material to withstand abrasive wear under specified conditions, and then use this data to determine the type of application that will most effectively use the material.
During abrasion resistance testing, certain factors are Silicon Nitride Plate usually taken into account. These are the inherent surface properties of materials such as hardness, strength, ductility and work hardening. In addition to this, other basic factors to be aware of include surface finish, lubrication, load, speed, corrosion, and temperature and relative surface characteristics.
2. Examples of wear-resistant ceramic plate materials
Typical wear-resistant ceramics include zirconia, silicon nitride, boron carbide, cubic boron nitride, alumina, silicon carbide, and the like. Determining the wear resistance of ceramic materials is critical for determining the optimal application of these materials in mechanical devices.
Glass ceramic metallization
For example, wear-resistant ceramics, such as the above examples, are widely used in grinding and polishing materials, structural parts, wear-resistant coatings, linings of pipes or equipment, etc. Ceramic materials directly determine the safe service life of mechanical equipment and parts.
Three, several methods of ceramic substrate material wear test
There are several methods available for wear testing of ceramic materials. Here are some of them discussed in detail:
1. Taber wear
Taber wear is a test used to determine the abrasion resistance of Zirconia Ceramic materials, and the Taber wear test has also been used for plastic materials.
Abrasion resistance is defined as the ability of a material to withstand mechanical action such as scratching, brushing, friction or erosion. Abrasive wear is often difficult to compare. However, haze change or weight loss is often assessed.
2. Micro-wear technology
Compared to other methods, microwear techniques can more easily study the surface wear of materials. Micro-abrasion techniques can study the wear phenomenon of the topmost layer of a material, while also ensuring that the wear resistance of the material being studied is not affected by the substrate.
In a study using a microabrasion technique (perforated with steel balls) to determine the wear resistance of conventional ceramic materials, the method used was shown to be ideal for studying the wear properties of ceramic glazes. In order to adapt the test to the material used, the Ceramic Flange individual effects of each test condition on abrasion resistance were isolated while keeping other conditions constant.
The variables studied were:
the diameter and angular velocity of the ball;
? Abrasive suspension feed rate and particle size;
? Sample ball contact angle and grooves on the support drive shaft;
3. Pin disk wear test
This is commonly used in tribological characterization techniques to estimate the friction coefficient and wear mechanism of diamond films, and pin-on-disk testing can be used to characterize wear between two materials.
This is a wear testing technique that has been used to evaluate the performance of wear couples and to characterize the performance of different materials on standard surfaces.
4. RCA wear test
The RCA wear test is another ceramic wear test used to test surfaces to determine wear resistance. This test is typically used for painting or plating organic finishes, foils, etc. It is also widely Zirconia Ceramics used as a standard for many silicone keyboards and membrane switches. The RCA wear test is also standard in the automotive, appliance, cell phone, plastics and coatings industries.
5. Blade block wear test
In a blade-to-block wear test, an object, also called a block, is used that hinges back and forth on a stationary sample (also called a blade). The blade remains stationary when subjected to a constant normal load.
The service life and coefficient of friction of the coating are some examples of properties that can be characterized by this test.
Is the wear resistance of the ceramic plate good?
2022 06/27