International Syalons (Newcastle) Ltd. are manufacturers of advanced silicon nitride ceramics and composites. In addition we also supply zirconia, alumina, and silicon carbide ceramics. These materials are used in a range of industries such as molten metal handling, metal forming, oil and gas, chemical and process, automotive, and aerospace. Our silicon nitride ceramics, which we call Syalon, are characterised by high strength, toughness and hardness, high temperature strength and stability, excellent thermal shock resistance and resistance to attack by many molten metals and chemicals.