Technical Ceramics

The article details the application of ultra-precision polishing technology, specifically shear thickening polishing (STP), to difficult-to-machine materials, with a focus on silicon nitride (Si3N4) ceramics. It explores the limitations of existing polishing techniques, introduces STP, and presents a study on the use of a novel diamond-based shear-thickening polishing slurry (STPS) for achieving high-efficiency and high-precision […]

Boron nitride (BN) and aluminum nitride (AlN) are both important non-oxide advanced ceramic materials, but they have key differences that make them suitable for distinct applications. Feature Boron Nitride (BN) Aluminum Nitride (AlN) Structure Hexagonal (h-BN) – layered, similar to graphite Wurtzite Thermal Conductivity Lower than AlN High (170-200 W/m·K) Electrical Insulation Excellent, superior to

Zirconia and alumina, while both advanced ceramics, degrade differently at high temperatures and under varying conditions. Here’s a detailed look, incorporating the specific temperatures you provided: Zirconia (ZrO₂) Low-Temperature Degradation (LTD): A significant concern for zirconia, especially in its stabilized forms (like Y-TZP), LTD occurs between approximately 200-300°C in the presence of moisture. This process

While advanced ceramics offer a unique combination of properties, they aren’t always the best or only choice. Here are some materials that can replace advanced ceramics in certain applications, along with the reasons why they might be considered: 1. Metals and Alloys: Examples: Stainless steel, aluminum, titanium alloys Applications: Structural components, heat sinks, where toughness

Advanced ceramics and metal alloys are both classes of high-performance materials with unique properties that make them suitable for demanding applications. However, they exhibit significant differences in their characteristics and applications.  Composition: Advanced Ceramics: Inorganic, non-metallic materials composed of elements such as silicon, aluminum, oxygen, nitrogen, and carbon. Examples include alumina (Al₂O₃), zirconia (ZrO₂), silicon carbide

Boron Nitride (h-BN) and Silicon Nitride (Si3N4) are both advanced ceramics known for their unique properties and applications in various industries. Both materials are non-oxide engineering ceramics, which means they do not contain oxygen in their chemical structure, but they possess distinct properties that make them suitable for different applications. Here’s Here’s a comprehensive comparison

Abstract: Ceramic forming is the process of shaping ceramic raw materials into green bodies with specific shapes, dimensions, and certain strength according to the requirements of actual production. The forming process depends on the properties of the ceramic raw materials and the forming process methods. There are various methods to create the shapes of ceramic