Al2O3/Ag composite ceramics were fabricated by the use of mechanical milling and pressureless sintering. Al2O3 + 10 wt.% Ag were mixed and milled during 12 h at 300 rpm in a horizontal mill, then with the powder mixture it was conformed cylindrical samples by uniaxial pressing using 300 MPa. The pressed samples were sintered during 1 h in an electrical furnace at 1300, 1400 and 1500°C respectively. Sinter was performed using an argon atmosphere inside the furnace in order to inhibit silver oxidation. XRD results established that silver retains its crystalline structure. On the other hand, density of samples is better with increments in temperature. However, the final relative density is small and about of 91%. Scanning electron microscopy observations show alumina’s microstructure with very fine and homogeneous distributions of silver particles. Increments in sintering temperature are reflected as enhancements of the density and consequently of the fracture toughness of the Al2O3/Ag composite ceramics.
| Published in | Advances in Materials (Volume 2, Issue 6) |
| DOI | 10.11648/j.am.20130206.11 |
| Page(s) | 62-65 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2014. Published by Science Publishing Group |
Al2O3/Ag Composites, Fracture Toughness, Pressureless Sintering, Metallic Reinforcement
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APA Style
Enrique Rocha-Rangel, Elizabeth Refugio-García, José Miranda-Hernández, Eduardo Terres-Rojas. (2014). Alumina-Based Composites Reinforced with Silver Particles. Advances in Materials, 2(6), 62-65. https://doi.org/10.11648/j.am.20130206.11
ACS Style
Enrique Rocha-Rangel; Elizabeth Refugio-García; José Miranda-Hernández; Eduardo Terres-Rojas. Alumina-Based Composites Reinforced with Silver Particles. Adv. Mater. 2014, 2(6), 62-65. doi: 10.11648/j.am.20130206.11
AMA Style
Enrique Rocha-Rangel, Elizabeth Refugio-García, José Miranda-Hernández, Eduardo Terres-Rojas. Alumina-Based Composites Reinforced with Silver Particles. Adv Mater. 2014;2(6):62-65. doi: 10.11648/j.am.20130206.11
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Download@article{10.11648/j.am.20130206.11,
author = {Enrique Rocha-Rangel and Elizabeth Refugio-García and José Miranda-Hernández and Eduardo Terres-Rojas},
title = {Alumina-Based Composites Reinforced with Silver Particles},
journal = {Advances in Materials},
volume = {2},
number = {6},
pages = {62-65},
doi = {10.11648/j.am.20130206.11},
url = {https://doi.org/10.11648/j.am.20130206.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20130206.11},
abstract = {Al2O3/Ag composite ceramics were fabricated by the use of mechanical milling and pressureless sintering. Al2O3 + 10 wt.% Ag were mixed and milled during 12 h at 300 rpm in a horizontal mill, then with the powder mixture it was conformed cylindrical samples by uniaxial pressing using 300 MPa. The pressed samples were sintered during 1 h in an electrical furnace at 1300, 1400 and 1500°C respectively. Sinter was performed using an argon atmosphere inside the furnace in order to inhibit silver oxidation. XRD results established that silver retains its crystalline structure. On the other hand, density of samples is better with increments in temperature. However, the final relative density is small and about of 91%. Scanning electron microscopy observations show alumina’s microstructure with very fine and homogeneous distributions of silver particles. Increments in sintering temperature are reflected as enhancements of the density and consequently of the fracture toughness of the Al2O3/Ag composite ceramics.},
year = {2014}
}
TY - JOUR T1 - Alumina-Based Composites Reinforced with Silver Particles AU - Enrique Rocha-Rangel AU - Elizabeth Refugio-García AU - José Miranda-Hernández AU - Eduardo Terres-Rojas Y1 - 2014/01/10 PY - 2014 N1 - https://doi.org/10.11648/j.am.20130206.11 DO - 10.11648/j.am.20130206.11 T2 - Advances in Materials JF - Advances in Materials JO - Advances in Materials SP - 62 EP - 65 PB - Science Publishing Group SN - 2327-252X UR - https://doi.org/10.11648/j.am.20130206.11 AB - Al2O3/Ag composite ceramics were fabricated by the use of mechanical milling and pressureless sintering. Al2O3 + 10 wt.% Ag were mixed and milled during 12 h at 300 rpm in a horizontal mill, then with the powder mixture it was conformed cylindrical samples by uniaxial pressing using 300 MPa. The pressed samples were sintered during 1 h in an electrical furnace at 1300, 1400 and 1500°C respectively. Sinter was performed using an argon atmosphere inside the furnace in order to inhibit silver oxidation. XRD results established that silver retains its crystalline structure. On the other hand, density of samples is better with increments in temperature. However, the final relative density is small and about of 91%. Scanning electron microscopy observations show alumina’s microstructure with very fine and homogeneous distributions of silver particles. Increments in sintering temperature are reflected as enhancements of the density and consequently of the fracture toughness of the Al2O3/Ag composite ceramics. VL - 2 IS - 6 ER -
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