Ceramic and metal are not interchangeable materials that happen to look different. They operate on fundamentally different physical and chemical principles, which means choosing between them is always a materials science decision, not an aesthetic one. This guide compares ceramic and metal across every property that matters: hardness, thermal behavior, electrical conductivity, mechanical strength, corrosion…
Ceramics do not conduct electricity the way metals do. That single fact explains why ceramic materials appear in everything from spark plug insulators to ultrasound transducers to the capacitors inside your smartphone. This guide covers the full spectrum of ceramic electrical behavior: insulators, semiconductors, piezoelectrics, ferroelectrics, superconductors, and ionic conductors. Each category includes the underlying…
Ceramic hardness is not a single fixed number. It shifts across material types, firing temperatures, and silica content in ways that directly affect whether a surface scratches, chips, or survives industrial use. The Mohs scale places most fired ceramics between 6 and 9, but that range spans the difference between a soft earthenware tile that…
Ceramics do not conduct heat the way metals do. That single fact explains why a ceramic mug stays cool enough to hold while the coffee inside stays hot, why refractory kiln bricks survive repeated firing to cone 10 (2381°F / 1305°C), and why advanced ceramic components protect aerospace engines from temperatures that would instantly destroy…
Ceramics break cleanly and suddenly, without bending first. That single fact separates them from almost every metal, polymer, and wood material a craftsperson works with, and understanding why requires a look at what happens at the atomic level inside a fired clay body. Brittleness in ceramics is not a defect or a manufacturing flaw. It…
Ceramic materials do not bend before they break. That single fact explains why a zirconia dental crown survives decades of biting force while a dropped coffee mug shatters on a tile floor from the same impact that would only dent a metal cup. The three properties that define nearly every ceramic in use today are…