The CIMJET is a Micro Gas Turbine concept. It is intended that each part is made from ceramic by Ceramic Injection Moulding (CIM). However, ceramic has a low fracture toughness and ceramic blades have a history of failure at stress concentrations.
It took three years unconventional research to develop a gas turbine design methodology that respects the required aerodynamic design constraints to produce a ceramic blade design that exhibits no stress concentrations under a combined gas bending load and a tensile load. The SAP-Blade design does not use any fillets and presents an inherent minimum weight for the design load case.