Mechanical Test of Aluminum-Zirconium-Silicate Composite Prototype with Filler Volume Variation

Abstract:

Recently, ceramic material has become a main object of scientific interest especially in dental material. The advance of dental materials technology has led to use of zirconia-based ceramics for composite filler. In this study, composite filler has been synthesized from natural zircon sand through geopolymerization method. Composite prototype were made with different filler volume to evaluate mechanical properties including hardness number and diametral tensile strength. Samples divided into two groups with 50 wt% filler volume (group A) and 75 wt% filler volume (group B) which 3 samples for each group. The surface micro hardness of each group tested by Leco M-400-H1 vickers microhardness testing machine and for diametral tensile strength tested using universal testing machine (Lloyd) with crosshead speed of 1,0 ± 0,25 mm/min. The data were analyzed using independent sample t-test. The results showed that the average of hardness number on group A was 13,8 VHN while for group B was 24,1 VHN. The average of diametral tensile strength for group A was 20,461 MPa and 27,689 MPa for group B. Statistical result showed that the value (P<0,05). The conclusion, there is a signifficant difference on the result of hardness test between group A (50 wt% filler volume) and group B (75 wt% filler volume) and also on diametral tensile strength test.

• Periodical: Key Engineering Materials (Volume 829)
• Pages: 81-86
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.829.81
• Online since: December 2019
• Authors: Elin Karlina*, Kosterman Usri, Renny Febrida, Camellia Panatarani, I Made Joni, Yunita Fatmala
• Keywords: Composite Prototype, Filler Volume Variation, Mechanical Test

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