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Publication Metadata only Shear bond strength between autopolymerizing acrylic resin and Co-Cr alloy using different primers(2012-10-30) Sasiwimol Sanohkan; Somchai Urapepon; Choltacha Harnirattisai; Chakrit Sirisinha; Panya Sunintaboon; Mahidol UniversityThis study aimed to examine the shear bond strength between cobalt chromium alloy and autopolymerizing acrylic resin using experimental primers containing 5, 10, and 15 wt% of 4-methacryloxyethyl trimellitic anhydride or 1, 2, and 3 wt% of 3...-methacryloxypropyl-trimethoxysilane comparison to 5 commercial primers (ML primers, Alloy primer, Metal/Zirconia primer, Monobond S, and Monobond plus). Sixty alloy specimens were sandblasted and treated with each primer before bonded with an acrylic resinPublication Metadata only Development of Metal-resin Composite Restorative Material Part 4 Flexural Strength and Flexural Modulus of Metal-resin Composite using Ag-In Alloy Particles as Filler(2002-01-01) Kiyoshi Kakuta; Somchai Urapepon; Yukio Miyagawa; Hideo Ogura; Masahiko Yamanaka; Chatcharee Suchatlampong; Apiwat Rittapai; Nippon Dental University; Mahidol UniversityThe flexural strength and flexural modulus of an experimental metal-resin composite, which used Ag-In alloy particle as the filler, were evaluated. The effect of acid treatment and heat treatment on the Ag-In alloy particle was investigated... of HCl of the acid treatment. A metal-resin composite, which used acid-treated and 350°C heat-treated Ag-In alloy fillers, matched the requirement of strength of ISO 4049. The average of flexural modulus of the experimental metal-resin composite was 9Item Metadata only Performance comparison of Ga and Ga/La alloy layered active magnetic regeneration beds in a rotary magnetic refrigeration prototype(2022-01-01) Dedruktip N.; Panjatewakub P.; Lupponglung V.; Na Wichean T.; Matan K.; Techapiesancharoenkij R.; Mahidol Universityactive magnetic regeneration (AMR) prototype with a magnetic field amplitude of 0.625 T. The purpose of this study is to compare the performances between two different magnetocaloric AMR beds: Gadolinium (Gd) AMR bed and Gd/Lanthanum (La)-alloy layered... AMR bed. The Gd/La alloy layered AMR bed is composed of 5 segments of MCE materials with different Curie temperature (Tc). All Gd and La-alloy materials used in this study were irregular-shape particles with particle sizes smaller than 200 µm. The MCEPublication Metadata only Corrosion resistance of anodized Ti-6Al-4V alloy(2009-01-01) Sirinee Thaiwatthana; Noparat Kanjanaprayut; Kosit Wongpinkeaw; Manthana Jariyaboon; Thailand National Metal and Materials Technology Center; King Mongkut's University of Technology North Bangkok; Mahidol UniversityIn this study, titanium alloy Ti-6Al-4V sheet and rod were anodized at different applied potentials from 10-50V producing a range of colors such as light blue, dark blue, purple, and gold. Anodic polarization and an electrochemical impedance... an environment inside the human's body. The corrosion resistance of anodized Ti-6Al-4V alloy showed a clear improvement but reduced after soaking time was increased. Two layers of oxide films were found on the surface of anodized specimens, consisting of a porousPublication Metadata only Evaluation of anticorrosive behaviour of ZnO nanotetra-pods on a AZ91-grade Mg alloy(2019-10-01) R. Brindha; S. S.Raja Ajith; M. Nandhini; M. Selvam; Kittitat Subannajui; Kittikhun Khotmungkhun; K. Sakthipandi; Sethu Institute of Technology; K.S.Rangasamy College of Technology; Mahidol Universitydiffraction, an ultra violet visible spectrometry and energy-dispersive spectroscopy. The electrochemical corrosion behaviours of an AZ91-grade Mg alloy and a ZnO/PN nanotetra-pod-coated Mg alloy were investigated. The Tafel plot revealed that the corrosionItem Metadata only Weld Formation and Characteristics of Hot-Wire Laser Welding in Aluminum Alloy Narrow-Gap Joints(2025-07-01) Greebmalai J.; Sadasue S.; Marumoto K.; Warinsiriruk E.; Yamamoto M.; Greebmalai J.; Mahidol UniversityThis study joins a 20 mm thick 5000-series aluminum alloy using hot-wire insertion combined with narrow-gap laser welding to evaluate the feasibility and welding characteristics of this technique. The findings indicate that weld formationPublication Metadata only Mechanical alloying of Sm and Fe mixtures having the molar ratio of 1/2 and 1/3(2000-01-01) S. Thongmee; I. M. Tang; T. Methasiri; Mahidol University; Chulalongkorn UniversityThe mechanical alloying of Sm-Fe mixtures of molar ratios 1/2 and 1/3 were carried out. The milled mixtures were subjected to a two-step annealing process; first annealing for 1 h at 900 °C in argon gas, followed by a second annealing for 4 hItem Metadata only Strengthening optical enhancement with AgxAu1−x alloy and Ag/Au heteromaterial sub-micro disk arrays(2022-11-01) Sitpathom N.; Suwanna S.; Pijitrojana W.; Infahsaeng Y.; Pongophas E.; Bavontaweepanya R.; Deesuwan T.; Mahidol University-hexagonal sub-micro disk arrays of the AgxAu1−x alloy increase electric-field enhancement in the near-infrared spectra at reduced Ag fraction in the alloy, while the arrays of pure Ag does so in the visible spectra. For the enhancement factor in the nearPublication Metadata only Influence of third element of TiNi alloy on tribological behavior in dry and wet conditions for orthodontic applications(2019-01-01) A. Phukaoluan; A. Khantachawana; P. Kaewtatip; S. Dechkunakorn; Mahidol University; King Mongkut s University of Technology Thonburi; Siam Technology College© 2019 Trans Tech Publications Ltd, Switzerland. The tribological behavior of Ti49.4Ni50.6, Ti49Ni46Cu5 and Ti50Ni47Co3 (at%) alloy in dry and wet conditions was studied. The alloy was prepared in a Vacuum Arc Re-melting (VAR), homogenized at 800oPublication Metadata only Proximity effect tunneling into virtual bound state alloys(1984-09-01) I. M. Tang; S. Roongkeadsakoon; Mahidol University; Silpakorn UniversityThe effects of a narrow virtual bound state formed by transition metal impurities dissolved in the normal layer of a superconducting proximity effect sandwich are studied. Using standard renormalization techniques, we obtain the changes in the transition temperatures and the jumps in the specific heat at Tc as a function of the thickness of the normal layer, of the widths of the virtual bound states, and of the impurity concentrations. It is seen that narrow virtual bound states lead to decreases in the transition temperatures, while broad virtual bound states do not. It is further seen that the narrow virtual bound state causes the reduced specific heat jump at Tc to deviate from the BCS behavior expected of the pure sandwich. © 1984 Plenum Publishing Corporation.