Centre for Non-Oxide Ceramics (CNOC)

Non-oxide ceramics which include various carbides, nitrides, borides, and silicides have been used as solution to many of the severe materials issues foreseen over the period of past four decades because of their extra ordinary material properties. Centre for Non-Oxide Ceramics (CNOC) at ARCI is being actively pursuing R&D activities in the area of various non-oxide ceramics, their coatings and composites for wide range of applications. This centre has successfully developed technologies for range of products such as reaction bonded, and pressure less sintered silicon carbide for mechanical seals, wear parts, and critical components in the requirement of light-weight and high stiffness applications. This centre has also developed large area CVD coated SiC parts for many applications due to their relatively low co-efficient of thermal expansion and extremely smooth surface that can be achieved upon polishing. The centre is actively working on development of receiver tubes and joining the same for generation of solar thermal powers, development of hot pressed silicon carbide, boron carbide, and their composite materials for high impact, abrasion, and wear resistant applications, nitride based ceramics with low dielectric constant and excellent mechanical properties for RF windows and cutting tools applications. Ongoing R&D activities of the centre also include development of ready to press SiC powder through proper selection of additives and binders, nano composites either by using nano powder as primary phase or incorporating them in the matrix as a secondary phase. Near-net shape processing of ceramic foams and other parts through colloidal processing and gel casting, processing of ceramic parts by reaction bonding techniques are other thrust areas of research pursued at this centre.