STUDY ON ABLATION BEHAVIOR OF PHENOLIC COMPOSITES PREPARED WITH DIFFERENT AMOUNTS OF ZIRCONIA AND ASBESTOS FIBER

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MIRZAPOUR MIR ASAD; REZAEI HAGHIGHAT HASAN; ESLAMI ZAHRA

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Journal: Iranian Journal of Polymer Science and Technology Year:2012 | Volume:25 | Issue:3 (ISSUE NO. 119) Page(s): 182-191

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Title

STUDY ON ABLATION BEHAVIOR OF PHENOLIC COMPOSITES PREPARED WITH DIFFERENT AMOUNTS OF ZIRCONIA AND ASBESTOS FIBER

Author(s)

MIRZAPOUR MIR ASAD | REZAEI HAGHIGHAT HASAN | ESLAMI ZAHRA | Issue Writer Certificate

Keywords

ABLATIVEQ2

PHENOLIC COMPOSITEQ2

BURN-THROUGH TIMEQ2

THERMAL STABILITYQ2

EROSION RATEQ2

Abstract

ABLATIVE materials play a strategic role in aerospace industry. These materials produce a thermal protection system which protects the structure, the aerodynamic surfaces and the payload of vehicles and probes during hypersonic flight through a planetary atmosphere. In this work, we investigated the effect of refractory zirconium oxide on mechanical, heat stability and ablation properties of asbestos/phenolic/zirconia composites. The asbestos/phenolic/zirconia composites were produced with different percentages of zirconia filler from 7 to 21% with average size of 7 mm and different number of layers of asbestos, say 3 to 6 layers. These ABLATIVE composites were made by an autoclave curing cycle process. The densities of the composites were in the range of 1.68 to 1.88 g/cm3. Ablation properties of composites were determined by oxy-acetylene torch environment and BURN-THROUGH TIME, EROSION RATEs and back surface temperature in the first required 20 seconds. THERMAL STABILITY of the produced materials was estimated by means of thermal gravimetric analysis, in both air and nitrogen which consisted of dynamic scans at a heating rate of 10oC/min from 30 to 1000oC with bulk samples of about 20±1 mg. The results showed that when the amount of zirconia was raised from 7% to 21%, the EROSION RATE and the back surface temperature of composites increased by about 24% and 26% respectively, and the heat capacity of the composites increased by about 85%. Also, the result showed that when the thickness of composites of 4.2 mm was increased to 10.1mm the BURN-THROUGH TIME raised by about 226% and EROSION RATE dropped by about 41%. These composites displayed the maximum flexural strength when the amount of zirconia was about 14%.

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APA: Copy

MIRZAPOUR, MIR ASAD, REZAEI HAGHIGHAT, HASAN, & ESLAMI, ZAHRA. (2012). STUDY ON ABLATION BEHAVIOR OF PHENOLIC COMPOSITES PREPARED WITH DIFFERENT AMOUNTS OF ZIRCONIA AND ASBESTOS FIBER. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 25(3 (ISSUE NO. 119)), 182-191. SID. https://sid.ir/paper/6643/en

Vancouver: Copy

MIRZAPOUR MIR ASAD, REZAEI HAGHIGHAT HASAN, ESLAMI ZAHRA. STUDY ON ABLATION BEHAVIOR OF PHENOLIC COMPOSITES PREPARED WITH DIFFERENT AMOUNTS OF ZIRCONIA AND ASBESTOS FIBER. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2012;25(3 (ISSUE NO. 119)):182-191. Available from: https://sid.ir/paper/6643/en

IEEE: Copy

MIR ASAD MIRZAPOUR, HASAN REZAEI HAGHIGHAT, and ZAHRA ESLAMI, “STUDY ON ABLATION BEHAVIOR OF PHENOLIC COMPOSITES PREPARED WITH DIFFERENT AMOUNTS OF ZIRCONIA AND ASBESTOS FIBER,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 25, no. 3 (ISSUE NO. 119), pp. 182–191, 2012, [Online]. Available: https://sid.ir/paper/6643/en

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