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All Journal Ganendra: Majalah IPTEK Nuklir Jurnal Sains Materi Indonesia
Wiwien Andriyanti
Centre for Accelerator Science and Technology - National Nuclear Energy Agency
Computer Science & IT Materials Science & Nanotechnology Other

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APLIKASI TEKNOLOGI MESIN BERKAS ELEKTRON PADA PROSES PEWARNAAN BATIK KATUN DENGAN PEWARNA ALAMI MENGGUNAKAN METODE CURING Wiwien Andriyanti; Darsono Darsono; Elin Nuraini; Lilin Indrayani; Mutiara Triwiswara
GANENDRA Majalah IPTEK Nuklir Volume 23 Nomor 1 Januari 2020
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.856 KB) | DOI: 10.17146/gnd.2020.23.1.5860

Abstract

APLIKASI TEKNOLOGI MESIN BERKAS ELEKTRON PADA PROSES PEWARNAAN BATIK KATUN DENGAN PEWARNA ALAMI MENGGUNAKAN METODE CURING. Batik merupakan salah satu kekayaan budaya Indonesia yang sudah ada sejak dulu. Dalam proses pewarnaan batik dikenal zat warna sintetis (ZWS) dan zat warna alamI (ZWA). Keunggulan dari proses pewarnaan menggunakan ZWA dibanding dengan ZWS adalah sifatnya yang ramah lingkungan. Namun, pada proses pewarnaan batik menggunakan pewarna ZWA masih menimbulkan permasalahan lingkungan karena penggunaan zat kimia yang mengandung garam logam berat dalam proses fiksasi. Untuk mengatasi permasalahan lingkungan tersebut maka pada penelitian ini dilakukan proses fiksasi menggunakan iradiasi berkas elektron. Hasil penelitian menunjukkan proses fiksasi menggunakan iradiasi berkas elektron dapat digunakan sebagai alternatif dalam rangkaian proses pewarnaan batik. Hasil uji berstandar SNI dari ketahanan luntur warna terhadap sinar, pencucian dan gosokan menunjukkan nilai yang baik untuk greyscale dan staining scale (4 dan 4-5) pada kain batik katun dengan campuran pewarna tingi dan Polietilen Glikol (PEG) dengan waktu iradiasi 60 detik.
THE EFFECT OF RATIO OF GAS MIXTURE FOR MECHANICAL PROPERTIES AND CRYSTAL STRUCTURES ON 316L STAINLESS STEEL BIOMATERIAL USING DC SPUTTERING TECHNIQUE Wiwien Andriyanti; Bunyamin Arsyad; Ravendianto Ravendianto; Tjipto Sujitno; Suprapto Suprapto; Dwi Priantoro
Jurnal Sains Materi Indonesia Vol 21, No 1: OCTOBER 2019
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (987.785 KB) | DOI: 10.17146/jsmi.2019.21.1.5657

Abstract

316L stainless steel is widely used as an orthopedic implant due to its high corrosion resistance and biocompatibility, but the weakness of these materials is low hardness and high wear. The surface must be modified to improve the material. For the purpose, a titanium nitride (TiN) thin film was deposited on the surface of SS 316L using DC sputtering technique. The sputtering process was carried out for various of a gas mixture of argon (Ar) and nitrogen (N2) such as  90 Ar: 10N2, 80 Ar: 20 N2, 70 Ar: N2, and 60 Ar: 40 N2, while the other parameters kept constant.  The objective of the gas mixture variation is to find out the optimum condition of ratio Ar: N2 gas mixture with the highest hardness and lowest wear resistance. From experiment done it’s found that the highest hardness in order of 232.02 VHN, while before being coated the hardness is 133.61 VHN, or there is an increasing hardness by factor 1.73, while the wear resistance reduces from  11.6 × 10-8 mm2/kg to 1.17 × 10-8 mm2/kg or there is reducing in wear resistance by factor 9.9.  The optimum conditions were achieved at Ar: N2 ratio = 70:30. From XRD analysis, it can be concluded that the crystal structure of TiN thin film is cubic with the peaks (111), (200), (202), (311) and (222). From cross-section microstructure analysis using Scanning Microscope Electron (SEM), it’s found the thickness of the thin film is 744 nm.
Co-Authors Bunyamin Arsyad Darsono Darsono Dwi Priantoro Elin Nuraini Lilin Indrayani Mutiara Triwiswara Ravendianto Ravendianto Suprapto Suprapto Tjipto Sujitno