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Title: | Pelapisan hidroksiapatit pada paduan logam CoCrMo-TiN dengan metode Sol-Gel |
Other Titles: | Hydroxyapatite coating on metal alloys CoCrMo-TiN with Sol-Gel method |
Authors: | Charlena Sukaryo, Sulistioso Giat Zuhfri, Moch. Irgham |
Issue Date: | 2014 |
Publisher: | Bogor Agricultural University (IPB) |
Abstract: | Hidroksiapatit (HAp) disintesis dengan metode presipitasi-sonikasi menggunakan sumber kalsium dari serbuk cangkang keong sawah dan sumber fosforus dari (NH4)2HPO4. Kadar kalsium diukur menggunakan spektofotometer serapan atom sebesar 82.82%. Suhu diragamkan pada 600, 800, dan 1000 oC untuk menentukan suhu terbaik pelapisan. Suhu terbaik tersebut digunakan untuk melapiskan HAp pada paduan logam CoCrMo-TiN menggunakan metode sol-gel termodifikasi. Lapisan yang menempel pada paduan logam diidentifikasi dengan diffraksi sinar X (XRD) dan uji korosi. Hasil XRD menunjukkan sebagian besar permukaan paduan logam CoCrMo-TiN terlapisi oleh HAp. Selain HAp, terdapat fase lain seperti kalsium fosfat, apatit karbonat tipe A dan tipe B. Hasil uji korosi paling baik ditunjukkan pada paduan logam CoCrMo-TiN yang terlapisi HAp dengan laju korosi paling kecil, yaitu 0.0082 mpy. Hydroxyapatite is synthesized by precipitation-sonification using calcium from field snail shell powder phosphorus from (NH4)2HPO4. The calcium level measured by atomic absorption spectrophotometer was 82.82%. The temperatures were varied on 600, 800, and 1000 oC to determine the best temperature of the coating. The best temperature was used to superimpose the HAp on the CoCrMo-TiN metal alloy using the modified sol-gel method. The layer on the metal alloy was identified with x-ray diffraction (XRD) and corrosion test. The XRD result showed that most of the CoCrMo-TiN metal alloy surface was coated by HAp. Beside HAp, there were several other phases such as calcium phosphate, carbonate apatite type A and type B. The best result of the corrosion test was showed in CoCrMo-TiN metal alloy coated with HAp with the smallest corrosion rate 0.0082 mpy. Key words: hydroxyapatite, metal alloys CoCrMo-TiN, precipitation-sonification, sol-gel modified |
URI: | http://repository.ipb.ac.id/handle/123456789/72757 |
Appears in Collections: | UT - Chemistry |
Files in This Item:
File | Description | Size | Format | |
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G14miz.pdf Restricted Access | Full Text | 2.06 MB | Adobe PDF | View/Open |
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