Effect of indentation load and time on knoop and vickers microhardness tests for enamel and dentin
Materials Research, 2009 The aim of this study was to determine the effect of variations in indentation load and time on the Knoop and Vickers hardness numbers (KHN and VHN) for enamel and dentin.
Chanya Chuenarrom +2 more
doaj +1 more source
Relation between mechanical and textural properties of dense materials of tetragonal and cubic zirconia [PDF]
Science of Sintering, 2016 In the current paper we present a study of the sinterability of two zirconia (ZrO2) nanopowders with different content of yttrium oxide (Y2O3) 3 and 8 % tetragonal and cubic zirconia, respectively. After sintering between 900-1500ºC, the samples
Gómez Sofía +3 more
doaj +1 more source
Analisis Simulasi Hubungan Suhu Sintering Dengan Nilai Kekerasan Dan Kekuatan Patah Keramik Alumina
Jurnal Eduscience, 2020 This research uses variable sintering temperature of 1300 0C, 1400 0C, 1500 0C and 1600 0C mixed with mullite additives 0%, 10%, 15%, 20% and 25%. As parameters of the study are the vickers hardness and bending strength.
Marnanda Seragih +2 more
doaj +1 more source
Addition to the methodology of research into permanent teeth hardness [PDF]
Archives of Biological Sciences, 2010 This paper examines permanent teeth hardness (microhardness) using the Vickers method. An original methodology was developed and adopted for preparing the experimental material, i.e.
Gnjato Sanja
doaj +1 more source
PENGARUH PENGGUNAAN PASIR BALIKPAPAN TERHADAP KEKERASAN DAN FLUIDITAS LOGAM CORAN PADUAN Al-Si
Otopro, 2021 The use of sand as a mold in the casting process is very common. In this study, Balikpapan sand used as casting sand then analyzed its effect on hardness and fluidity of the Al-Si alloy.
Sabdha Purna Yudha
doaj +1 more source
Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]
, 2010 Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo, +7 more
core +5 more sources
Optimizing the Parameters of Spark Plasma Sintering to Enhance the Hardness of MgO/TiC Composites
Advances in Materials Science and Engineering, 2023 In this research, the first work was carried out to manufacture MgO-based metal matrix composite containing 3 wt%. Sintering parameters, such as temperature, pressure, and time were subjected to Taguchi analysis to identify the most significant effect on
Sai Ashish Kumar Karanam +8 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Microstructural evolution and hardness optimization along the cross‐section of friction stir welded AA6061/AlSi10MgMn joints, for electric vehicle battery housings, were investigated. Postweld aging between 170°C and 220°C enhances hardness uniformity within the nugget zone.
Emanuele Ghio, Emanuela Cerri
wiley +1 more source
The Measurement of Surface Hardness of Mineral Trioxide Aggregate Material (MTA) using Two Techniques of Condensation. [PDF]
Al-Rafidain Dental Journal, 2008 Aims: This in vitro study was conducted to exam the effect of condensation technique on surface hardness of MTA. Materials and Methods: In this study, 20 acrylic blocks were used.
Maha A. AlMurad
doaj +1 more source
Effect of the over-ageing treatment on the mechanical properties of AA2024 aluminum alloy. [PDF]
, 2012 The evolution of the hardness of the over-ageing AA2024 alloy scale was followed by measurements of Vickers hardness. The nanoindentation is adapted to the determination of elastoplastic properties (hardness and Young’s modulus) of the matrix and also of
Abrudeanu, Marioara +6 more
core