EFFECT OF MOLD PREHEATING TEMPERATURE ON A COBALT BASE ALLOY CALCIUM PHOSPHATE COATING DURING INVESTMENT CASTING

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MINOUEI H.; MERATIAN M.; FATHI M.H.; GHAZVINIZADEH H.

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Journal: IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING Year:2011 | Volume:- | Issue:10 Page(s): 31-40

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Title

EFFECT OF MOLD PREHEATING TEMPERATURE ON A COBALT BASE ALLOY CALCIUM PHOSPHATE COATING DURING INVESTMENT CASTING

Author(s)

MINOUEI H. | MERATIAN M. | FATHI M.H. | GHAZVINIZADEH H. | Issue Writer Certificate

Keywords

BIPHASIC CALCIUM PHOSPHATEQ3

BIOACTIVITYQ3

COATINGQ2

INVESTMENT CASTINGQ2

HYDROXYAPATITE AND β-TRICALCIUM PHOSPHATEQ2

Abstract

The BIPHASIC CALCIUM PHOSPHATE (BCP) yields higher BIOACTIVITY and efficiency than the Hydroxyapatite (HA) alone. TheHA/b-TCP ratio significantly affects BCP BIOACTIVITY as well as the extent of BCP resorption. In this study, the BCP COATING on ASTM F-75 cobalt base alloy during the INVESTMENT CASTING process was investigated. For this purpose, molten metal was poured at 1470oC into previously coated investment molds preheated to 750, 850, 950, 1050oC in order to investigate the effect of mold preheating temperatures on COATING phase transformations. For in vitro evaluation, samples were immersed in the simulated body fluid (SBF) at 37oC for 4 weeks and characterized by XRD, SEM, EDS, and optical microscopy. The weight percentages of HA and b-TCP of the specimens were calculated to find that the HA/b-TCP ratio significantly depended on the mold preheating temperature as it caused changes in the dissolution behavior of BCP COATING and the bone-like apatite precipitation on COATING during in vitro evaluation.

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APA: Copy

MINOUEI, H., MERATIAN, M., FATHI, M.H., & GHAZVINIZADEH, H.. (2011). EFFECT OF MOLD PREHEATING TEMPERATURE ON A COBALT BASE ALLOY CALCIUM PHOSPHATE COATING DURING INVESTMENT CASTING. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, -(10), 31-40. SID. https://sid.ir/paper/121082/en

Vancouver: Copy

MINOUEI H., MERATIAN M., FATHI M.H., GHAZVINIZADEH H.. EFFECT OF MOLD PREHEATING TEMPERATURE ON A COBALT BASE ALLOY CALCIUM PHOSPHATE COATING DURING INVESTMENT CASTING. IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING[Internet]. 2011;-(10):31-40. Available from: https://sid.ir/paper/121082/en

IEEE: Copy

H. MINOUEI, M. MERATIAN, M.H. FATHI, and H. GHAZVINIZADEH, “EFFECT OF MOLD PREHEATING TEMPERATURE ON A COBALT BASE ALLOY CALCIUM PHOSPHATE COATING DURING INVESTMENT CASTING,” IRANIAN JOURNAL OF SURFACE SCIENCE AND ENGINEERING, vol. -, no. 10, pp. 31–40, 2011, [Online]. Available: https://sid.ir/paper/121082/en

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