Effects of repeated preheating on polymerization shrinkage kinetics and Vickers microhardness of resin composites: an in vitro study [PDF]
BMC Oral HealthBackground Preheating resin composites can reduce viscosity and improve handling; however, resin syringes or capsules used in multiple clinical applications may undergo repeated heating and cooling.
Daeyeong Kim +3 more
doaj +2 more sources
Influence of preheating on residual stresses in ultra-high strength steel welded components
Journal of Materials Research and Technology, 2023 Preheating is generally required in the welding of ultra-high strength steels (UHSSs) for avoiding cold cracking. The present work systematically explores the influence of preheating on welding residual stresses (WRS) in components made of UHSS by means ...
Klaus Dilger, Jiamin Sun
exaly +3 more sources
Polymerization of a resin composite luting agent: effects of temperature, preheating duration, and light-curing duration [PDF]
Frontiers in Oral HealthObjectiveThis study evaluated how preheating temperature and duration, and light-curing time affect the microhardness (HV) and degree of conversion (DC) of a preheated resin composite used as a luting agent.Materials and methodsA microhybrid composite ...
Ahmad Alsahli +4 more
doaj +2 more sources
Material-Dependent Microhardness Response to Preheating in Nanoparticulate Composite Resins Cured with High-Intensity Light [PDF]
Dentistry JournalBackground/Objectives: Composite resins are widely used in restorative dentistry due to their aesthetic properties and ease of handling. Preheating prior to light polymerization has been proposed to improve flowability, degree of conversion, and ...
Jorge I. Fajardo +4 more
doaj +2 more sources
Batteries, 2022 The continuous low temperature in winter is the main factor limiting the popularity of electric vehicles in cold regions. The best way to solve this problem is by preheating power battery packs.
Xiaogang Wu +4 more
doaj +1 more source
Numerical simulation of scrap preheating in EAF steelmaking
Journal of Hebei University of Science and Technology, 2021 In order to make full use of waste heat of electric arc furnace (EAF) flue gas to preheat scrap steel,a three-dimensional unsteady random distribution local model of scrap preheating process was established on the platform of computational fluid dynamics
Yining1 FAN +5 more
doaj +1 more source
World Electric Vehicle Journal, 2023 Low temperatures induce limited charging ability and lifespan in lithium-ion batteries, and may even cause accidents. Therefore, a reliable preheating strategy is needed to address this issue.
Song Pan +4 more
doaj +1 more source
Cracking suppression by substrate preheating using an induction heater in directed energy deposition
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023 The applications of wear resistant material coatings or claddings by directed energy deposition (DED) are rapidly increasing in industrial engineering fields. DED allows us the use of non-expensive substrate materials and add functional materials such as
Yoko HIRONO +3 more
doaj +1 more source
Mechanics Modeling of Residual Stress Considering Effect of Preheating in Laser Powder Bed Fusion
Journal of Manufacturing and Materials Processing, 2021 This study aimed at the investigation of the effect of substrate temperature on residual stress in laser powder bed fusion using a physics-based analytical model.
Elham Mirkoohi +5 more
doaj +1 more source
Technology Innovation for the Manual Laser Cladding of High-Alloy Tool Steels
Metals, 2021 This paper presents the development and successful application of an inductive preheating system running simultaneously with the manual laser cladding process in order to enable the repair of high-alloy tool steels having a highly limited weldability. In
Jonas Kimme +3 more
doaj +1 more source