Vacuum Heat Treatment

Effects of vacuum infilteration dipping in calcium chloride and postharvest heat treatment on firmness and calcium content of apples

Influence of Vacuum Heat Treatment on the Residual Stress of Thermal Spray Cermet Coatings

and light microscopy were used to identify the changes after the heat-treatment. Microhardness and indentation modulus values were also investigated to analyse the changes in the mechanical properties after the heat-treatment. Results of this investigation indicated that the residual stress gradient within the coating material decreases after the heat-treatment, and the stress field in the subs...

Heat treatment of tetrahedral amorphous carbon films grown by filtered cathodic vacuum-arc technique

Tetrahedral amorphous carbon (ta-C ) is a potential low-cost substitute for diamond in certain applications, but little is known of the temperature range over which its desirable properties are retained. The thermal stability of tetrahedral amorphous carbon (ta-C ) films has been investigated by heat treatment of the films at temperatures from room temperature to 450°C in high vacuum, low vacuu...

Change in Microstructure and Solubility Improvement of HAp Ceramics by Heat-Treatment in a Vacuum

1Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan 2Handai-Frontier Research Center, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan 3Department of Restorative Dentistry and Endodontology, Graduate School of Dentistry, Osaka University, Suita 565-0781, Japan 4Department of Biomaterials Science, Hirosh...

Numerical Analysis of Heat Transfer during Surface Pasteurization of Hot Dogs with Vacuum–Steam–Vacuum Technology

The objective of this study was to validate the fundamental heat-transfer mechanism governing the process of vacuum-steam-vacuum surface pasteurization of hot dogs. It was hypothesized that the steam could not directly flow into the pores below the surface of hot dogs, and the heat was transferred into these areas by conduction. A numerical analysis program was first developed to estimate the h...