UNIVERSITAS AIRLANGGA



Detail Article

Jurnal Fisika dan Terapannya

ISSN 9 772337 300009

Vol. 3 / No. 3 / Published : 2015-12

Order : 9, and page :112 - 120

Related with : Scholar   Yahoo!   Bing

Original Article :

Kajian transformasi fasa sintesis paduan kobalt sebagai implan tulang prosthesis melalui metode metalurgi serbuk

Author :

  1. Rifqotul Hasanah*1
  2. Aminatun*2
  3. Dyah Hikmawati*3
  1. Mahasiswa Fakultas Sains dan Teknologi
  2. Dosen Fakultas Sains dan Teknologi
  3. Dosen Fakultas Sains dan Teknologi

Abstract :

This research’s aim was to determine the effect of direct and indirect sintering steptowards phase formation and the hardness of cobalt alloy as bone implant. Direct sintering stepprocess were at temperature of 800oC and 970oC respectively for 2 hours long then followed bysintering at 1200oC and 1300oC. Whereas indirect sintering step were at 800oC and 970oC respectivelyfor 2 hours long followed by cooling down then sintered again at temperature of 1200oC and 1300oC.The fabrication process of the cobalt alloy with the composition of Co-30%Cr-5%Mo-0.5%Mn-0.5%Si-0.25%N was adapted with ASTM F75 using powder metallurgy method. Analysis of XRDshowed the existence of CoO, CoCr2O4, and Co2CrO4 chemical compound, proved that oxidation washappened on cobalt alloys and Co elements which yet homogeneous with the other elements; and theXRD identification result showed that in direct sintering process there are only two phases, ε and σ.Indirect step sintering process with initial temperature of 800oC, phase σ was formed, and whenfollowed by higher temperatures (1200oC and 1300oC), phase ε and σ were formed, where intemperature of 1300oC was dominated by σ phase. In sintering with initial temperature of 970oC,phase ε was formed, and when followed by temperature of 1200oC, phase ε and σ were formed. Butwhen followed by temperature of 1300oC, three phases were formed, γ, ε, and σ phase. According tohardness standard of ASTM F75, sample which were sintered at initial temperature of 970oC thenfollowed by temperature of 1300oC with indirect step sintering and has a hardness value of (313.91 ±123.58) VHN was the best cobalt alloy for prosthesis bone implant candidate.

Keyword :

Cobalt Alloy, Powder Metallurgy, sintering,


References :

Lee, Sang Hak, Naoyuki Nomura dan Akihiko Chiba,(2008) Significant Improvement in Mechanical Properties of Biomedical Co-Cr-Mo Alloys with Combination of N Addition and Cr-Enrichment Vol. 49, No0 2 (2008) pp. 260 to 264 : Materials Transactions

Dewi, Mega Farynda K.,(2013) Pengaruh Tekanan Kompaksi dan Temperatur Sintering Terhadap Sifat Mekanik Paduan Kobalt Sebagai Kandidat Implan Tulang Prosthesis Skripsi : Fakultas Sains dan Teknologi Universitas Airlangga

Saktiani, Tri,(2013) Optimalisasi Sifat Mekanik Paduan Kobalt Sebagai Implan Tulang Prosthesis Melalui Proses Sintering Skripsi : Fakultas Sains dan Teknologi Universitas Airlangga





Archive Article

Cover Media Content

Volume : 3 / No. : 3 / Pub. : 2015-12
  1. Pembuatan Semen Gigi Kalsium Fosfat – Zno (zinc Oxide)
  2. Pengaruh Variasi Waktu Milling Pada Sintesis Biokeramik Hidroksiapatit Dengan Metode Solid State Reaction
  3. Pengaruh Sinar Radiasi Ultraviolet (uv) Terhadap Antibakteri Sirih Merah (piper Crocatum) Untuk Menekan Laju Pertumbuhan Bakteri Streptococcus Mutans Secara In Vitro
  4. Remediasi Air Terkontaminasi Logam Berat Dengan Nanopartikel Magnetik-kitosan
  5. Sintesis Dan Studi Mikroskopik Biokomposit Dari Bahan Dasar Hidroksiapatit, Kitosan Dan Gentamicin Untuk Implan Tulang
  6. Analisis Perturbasi Geometri Pada Proses Disosiasi Molekul O2 Oleh Katalis Atom Fe Dengan Metode Density Functional Theory
  7. Rancang Bangun Alat Ukur Kadar Gula Darah Secara Non-invasive
  8. Identifikasi Kanker Serviks Dari Citra Papsmear Berbasis Kecerdasan Buatan
  9. Kajian Transformasi Fasa Sintesis Paduan Kobalt Sebagai Implan Tulang Prosthesis Melalui Metode Metalurgi Serbuk

Information index.php/JIPK/tmp_tumb/JFT