A Viewpoint on Hot Spots in Microwave Sintering and Flash Sintering
Jean-Marc Chaix, Renaud Bouchet, Didier Bouvard, Timothée Fabre, Tristan Garnault, Christelle Harnois, Kouami Koutoati, Marie Lachal, Sylvain Marinel, M.C. Steil
Abstract
Microwave sintering and flash sintering are field‐assisted ceramic processing techniques in which heating is totally or partly obtained inside the material itself by a coupling between the ceramic material and the electromagnetic or electrical field. They frequently give rise to the observation of localized temperature excess known as hot spots that can lead to dramatic effects on the sintered parts. This article explores and discusses the common origin of hot spots in both techniques, their development, and the possible ways for limiting their effects.
Topics & Concepts
SinteringMaterials scienceFlash (photography)LimitingCeramicMicrowaveHot spot (computer programming)MetallurgyField (mathematics)Microwave heatingComposite materialOpticsMechanical engineeringMathematicsComputer scienceQuantum mechanicsEngineeringPhysicsPure mathematicsOperating systemMicrowave-Assisted Synthesis and ApplicationsAdvanced ceramic materials synthesisEpoxy Resin Curing Processes