The Experts below are selected from a list of 177 Experts worldwide ranked by ideXlab platform
C.s. Harindranath - One of the best experts on this subject based on the ideXlab platform.
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Decorative Coatings produced using combination of reactive arc evaporation and magnetron sputtering
Surface and Coatings Technology, 1997Co-Authors: K.c. Shimpi, K. Ravindranath, A.k. Jani, D.c. Kothari, C.s. HarindranathAbstract:Composite Coatings, consisting mainly of transition metal nitride and gold-alloy thin films, are produced on stainless steel substrates using a combination of reactive arc evaporation and magnetron sputtering. The Coatings are evaluated for their porosity, damage due to arcing, perspiration and adhesion. Thickness, surface roughness, surface morphology, hue and gloss are also determined. Based on these tests and measurements, a Decorative Coating is developed for an application to wrist-watch straps. The study on optimization of process parameters for the Coating is presented in this paper.
K.c. Shimpi - One of the best experts on this subject based on the ideXlab platform.
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Decorative Coatings produced using combination of reactive arc evaporation and magnetron sputtering
Surface and Coatings Technology, 1997Co-Authors: K.c. Shimpi, K. Ravindranath, A.k. Jani, D.c. Kothari, C.s. HarindranathAbstract:Composite Coatings, consisting mainly of transition metal nitride and gold-alloy thin films, are produced on stainless steel substrates using a combination of reactive arc evaporation and magnetron sputtering. The Coatings are evaluated for their porosity, damage due to arcing, perspiration and adhesion. Thickness, surface roughness, surface morphology, hue and gloss are also determined. Based on these tests and measurements, a Decorative Coating is developed for an application to wrist-watch straps. The study on optimization of process parameters for the Coating is presented in this paper.
Pangestu, Felisia Cahyani - One of the best experts on this subject based on the ideXlab platform.
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Laporan Kerja Praktek PT. Pabrik Cat Tunggal Djaja Indah 1 Juli - 20 Agustus 2019
'Journal of the Faculty of Engineering and Architecture of Gazi University', 2019Co-Authors: . Tresia, Pangestu, Felisia CahyaniAbstract:PT. Pabrik Cat Tunggal Djaja Indah merupakan sebuah perusahaan yang memproduksi cat terkemuka di Indonesia dengan pengalaman bertahun – tahun dibidang industri cat. PT. Pabrik Cat Tunggal Djaja Indah terletak di Jalan Letan Jendral Suprapto No.26 – Kepuh Kecamatan Waru, Kabupaten Sidoarjo, Jawa Timur. PT. Pabrik Cat Tunggal Djaja Indah dikenal oleh masyarakat dengan cat Paragon. Pada awal didirikannya dengan nama CV. Tunggal Djaja pada tahun 1963. PT. Pabrik Cat Tunggal Djaja Indah memproduksi berbagai jenis cat, yaitu Decorative Coating (water and solvent based), Automotive Coating, Floor Coating, Industrial Coating, Heavy Duty Coating, dan water proof paint. Selain memproduksi cat, PT Pabrik Cat Tunggal Djaja Indah juga memproduksi thiner, lem epoxy, dan paint remover. PT Pabrik Cat Tunggal Djaja Indah memasarkan produknya pada daerahdaerah besar di Indonesia. Pada proses produksi cat terbagi menjadi 4 tahap yaitu, pemcampuran bahan baku cat dasar, pembuatan pasta, pewarnaan, dan pengemasan. Khusus pada proses produksi cat water based dengan fase natural based, tahap pewarnaan tidak dilakukan. PT Pabrik Cat Tunggal Djaja Indah menyediakan unit utilitas berupa air PDAM dan air sumur, listrik dan unit pemadam kebakaran. Air PDAM digunakan pada proses produksi pembuatan cat water based, sedangkan air sumur digunakan untuk MCK. Listrik digunakan untuk keperluan proses produksi dan penerangan dalam ruangan. Tugas khusus pada kerja praktek ini membuat katalog bahan baku pada PT. Pabrik Cat Tunggal Djaja Indah. Katalog Bahan Baku merupakan daftar bahan baku yang dapat digunakan oleh PT. Pabrik Cat Tunggal Djaja Indah dalam pembuatan cat. Katalog bahan baku dibagi menjadi 2 bagian, yaitu katalog bahan baku cat solvent based dan cat water based yang di buat oleh pabrik cat. Katalog bahan baku dibuat untuk mempermudah mengerti berbagai fungsi dari penggunaan bahan-bahan, katalog ini bertujuan untuk dapat membantu PT. Pabrik Cat Tunggal Djaja Indah untuk dapat mempertimbangkan bahan – bahan lainnya yang dapat digunakan sebagai campuran dari pembuatan cat, sehingga sekiranya dapat memperbaiki kualitas dari produksi cat PT. Pabrik Tunggal Djaja Indah kedepannya dan dapat menekan biaya dalam memproduksi cat kedepanny
S.m. Mayanna - One of the best experts on this subject based on the ideXlab platform.
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Microstructure, surface and electrochemical studies of electroless Cr–P Coatings tailored for the methanol oxidative fuel cell
Journal of Solid State Electrochemistry, 2005Co-Authors: C N Tharamani, F. Shafia Hoor, Noor Shahina Begum, S.m. MayannaAbstract:Cr–P is a new material of great importance as a Decorative Coating with nickel in automobile industries. Electroless plating of Cr–P alloy has been carried out using a suitable plating bath solution and working conditions. The deposit is characterized by X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray diffraction, X-ray photoelectron spectroscopy and polarization techniques. New phases appear on heat treatment of the Coating. The composition (Cr/P) of the Coating and the oxidation states of alloying elements vary from the surface to the bulk of the material. The Coatings acted as a novel electrode material with good electrocatalytic activity (low overvoltage) and good corrosion resistance for anodic oxidation of methanol in H2SO4 at normal working temperature. The good corrosion resistance of the Cr–P film is accounted for by the existence of a double oxyhydroxide passive film on the surface. The electrocatalytic activity of Cr–P is very high when compared with chromium alone.
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Development and characterisation of electroless Cr–P alloy as a Decorative Coating for automobiles
Surface Engineering, 2005Co-Authors: A. R. Shashikala, C N Tharamani, R. Uma Rani, Arundhati Sharma, S.m. MayannaAbstract:Abstract Electroless plating of Cr–P alloy as a Decorative Coating from acidic solution (pH 3·0) containing Cr2(SO4)3.6H2O, KSCN, glycine and NaH2PO2 was studied at 303 K to evaluate it as a novel technique for finishing of components. Spectral studies of the plating bath solution indicated the complexation of Cr3+ with KSCN and glycine. The action of these complexing agents was synergistic in nature, giving good quality Coating with a high deposition rate. X-ray and SEM studies revealed that Cr–P was partially crystalline and uniformly distributed on the substrate. The percentage of crystallinity and type of crystal planes appeared to vary with the nature of the complexing agent used. The resistance of the Coating towards corrosive media was related to the microstructure and the composition of the alloy. The developed procedure is simple, ecofriendly and economically viable.
Paul K. Chu - One of the best experts on this subject based on the ideXlab platform.
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Nanocrystalline titanium nitride films prepared by electrophoretic deposition
Surface and Coatings Technology, 2009Co-Authors: Xiaoli Cui, Paul K. ChuAbstract:Abstract Homogeneous and adhesive nanocrystalline TiN thin films are fabricated on Ti substrates by electrophoretic deposition in an aqueous suspension containing TiN powders at room temperature. X-ray diffraction confirms the formation of TiN films and the film color varies with deposition time. The current–time curves are recorded during deposition and the surface morphology and cross-sectional images are investigated by scanning electron microscopy (SEM). The film thickness is around 6.1 μm after 10 min deposition and increases with deposition time . The adhesion strength is characterized by the ultrasonic vibration method and peel-off test. Our results suggest that electrophoretic deposition is a practical and facile technique to prepare nanocrystalline TiN films that are particularly suitable for the Decorative Coating industry.
