Technical sialon ceramics are manufactured for refractory applications, providing improved thermodynamic capacities over established industry materials such as alumina (Al2O3) and zirconia (ZrO2). Sialon ceramics are unique for their exceptional balance of thermal and mechanical properties, including superior thermal shock resistance and mechanical integrity under temperatures exceeding 1400°C (2552°F).
International Syalons (Newcastle) Ltd. are pleased to announce that the Company has been acquired in full by Calsitherm Verwaltungs GmbH, and as of 18th July 2018 now are part of the Calsitherm Group.
Sialon ceramics can be thought of as refractory alloys of silicon–aluminum—oxynitride, which have been sintered with an additional oxide stabilizing agent, such as yttria, to form a high-density ceramic that is isostructural with either alpha (α) or beta (β) forms of high-strength silicon nitride (Si3N4). These established refractories exhibit outstanding degrees of physical stability under extreme thermodynamic stress. Composite grades of Si3N4 have been developed to elevate these properties with unique characteristics such as electro-discharge formability and improved corrosion resistant behavior.
A thermocouple protection sheath is a high-strength insulator designed to protect thermal sensors in extreme temperature conditions. These sheaths are designed as robust cylindrical elements that encapsulate the thermocouple and protect the wiring from process gases, other corrosive media, and mechanical abrasion. A small aperture allows the wiring junction to transmit electronic signals proportional to the temperature values from within an open or closed system, enabling high-stability monitoring of process temperatures in demanding environments such as non-ferrous molten metal handling.
Advanced sialon ceramics are engineered for numerous high-temperature applications, competing with established technical ceramics and refractory materials with their high strength and durability characteristics. These mechanical attributes are accompanied by outstanding thermal shock resistances, providing supreme physical stability under various thermodynamic conditions.
The Board are pleased to announce that, thanks the continued growth of the Company, International Syalons have appointed a new Quality, Health & Safety Engineer. Mark Earle has been with the Company for several months, and is making excellent progress.
Mark has joined the Company with a wealth of quality assurance experience from within the automotive industry, and is looking to transfer his knowledge and introduce additional procedures and working practices to further improve the quality of our products in line with our ISO 9001:2015 accreditation, and ensure the Company maintains its excellent health and safety record.
The depletion of existing hydrocarbon supplies and reserves is well-documented, with the oil and gas industry becoming increasingly circumspect in its attempts to meet a growing demand with a dwindling supply. Petroleum geology and natural gas exploration has transformed in recent years, augmenting traditional prospecting methodologies with new and emerging technologies. Fracking enables oil and gas suppliers to withdraw hydrocarbons dispersed in the strata of the earth’s crust, but this methodology is divisive from an ethical and environmental perspective.
Sialons are advanced technical ceramics based on silicon nitride (Si3N4). They retain the thermodynamic stability and exceptional toughness properties of silicon nitride due to their isostructural composition, but feature larger cell dimensions for the formation of high-density refractory components. This excellent molecular density enables outstanding resistance from severe corrosion and mechanical degradation, which are commonplace in industrial manufacturing environments. Sialons are therefore routinely used for the fabrication of wear components and thermally stable barriers for heat sensitive elements. Cutting tools, grinding media, and thermocouple protection sheaths are all commonly produced using materials from the sialon group.
Shot blast nozzles are the outlet component for industrial hot blasting surface preparation. They sustain enormous abrasive velocities and pressures throughout their service application in wear industries, automotive manufacturing, and construction. These sectors use a variety of abrasive methodologies, from wet abrasive blasting to hydro-blasting. Sandblasting is the most common method, which involves projecting a continuous, pressurized stream of abrasive grit upon a surface to alter its composition.