Ceramics for electronics play an important role in several industrial sectors. The most common way of producing these ceramics is through sintering processes from powders. The powders can be treated by mechanical activation; during this process they are subjected to grinding and the grain size is reduced. Crystal structure is distorted and changed; in some systems, the process leads to chemical reaction and formation of new compound. In this paper we explain the influence of mechanical activation on sintering kinetics in system MgCO3-TiO2. Mechanical activation of the starting powder mixture was performed by milling during different time intervals within 120 min in a planetary ball mill device with ZrO balls and vessels; ball to powder mass ratio was 40:1. Powders were compacted and sintered isothermally at 1100°C for 180 min. X-ray powder diffraction was used for observing the evolution of magnesium-titanate phase during milling. For specimens synthesized in such manner, microwave die...lectric properties were measured, namely dielectric loss (tg δ), specific electric resistance (ρ) and relative dielectric permittivity (εr).
TY - CONF
AU - Obradović, Nina
AU - Petrović, V.
AU - Maričić, Aleksa
AU - Ristić, Momčilo M.
PY - 2008
UR - http://dais.sanu.ac.rs/123456789/3563
AB - Ceramics for electronics play an important role in several industrial sectors. The most common way of producing these ceramics is through sintering processes from powders. The powders can be treated by mechanical activation; during this process they are subjected to grinding and the grain size is reduced. Crystal structure is distorted and changed; in some systems, the process leads to chemical reaction and formation of new compound. In this paper we explain the influence of mechanical activation on sintering kinetics in system MgCO3-TiO2. Mechanical activation of the starting powder mixture was performed by milling during different time intervals within 120 min in a planetary ball mill device with ZrO balls and vessels; ball to powder mass ratio was 40:1. Powders were compacted and sintered isothermally at 1100°C for 180 min. X-ray powder diffraction was used for observing the evolution of magnesium-titanate phase during milling. For specimens synthesized in such manner, microwave dielectric properties were measured, namely dielectric loss (tg δ), specific electric resistance (ρ) and relative dielectric permittivity (εr).
PB - Faenza : ISTEC-CNR
C3 - Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]
T1 - Structural and electrical properties of sintered MgTiO3 ceramics
ER -
@conference{
editor = "Bellosi, Alida, Babini, Gian Nicola",
author = "Obradović, Nina and Petrović, V. and Maričić, Aleksa and Ristić, Momčilo M.",
year = "2008",
url = "http://dais.sanu.ac.rs/123456789/3563",
abstract = "Ceramics for electronics play an important role in several industrial sectors. The most common way of producing these ceramics is through sintering processes from powders. The powders can be treated by mechanical activation; during this process they are subjected to grinding and the grain size is reduced. Crystal structure is distorted and changed; in some systems, the process leads to chemical reaction and formation of new compound. In this paper we explain the influence of mechanical activation on sintering kinetics in system MgCO3-TiO2. Mechanical activation of the starting powder mixture was performed by milling during different time intervals within 120 min in a planetary ball mill device with ZrO balls and vessels; ball to powder mass ratio was 40:1. Powders were compacted and sintered isothermally at 1100°C for 180 min. X-ray powder diffraction was used for observing the evolution of magnesium-titanate phase during milling. For specimens synthesized in such manner, microwave dielectric properties were measured, namely dielectric loss (tg δ), specific electric resistance (ρ) and relative dielectric permittivity (εr).",
publisher = "Faenza : ISTEC-CNR",
journal = "Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]",
title = "Structural and electrical properties of sintered MgTiO3 ceramics"
}
Bellosi A, Babini GN, Obradović N, Petrović V, Maričić A, Ristić MM. Structural and electrical properties of sintered MgTiO3 ceramics. Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]. 2008;
Bellosi, A., Babini, G. N., Obradović, N., Petrović, V., Maričić, A.,& Ristić, M. M. (2008). Structural and electrical properties of sintered MgTiO3 ceramics.
Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]Faenza : ISTEC-CNR., null.
Bellosi Alida, Babini Gian Nicola, Obradović Nina, Petrović V., Maričić Aleksa, Ristić Momčilo M., "Structural and electrical properties of sintered MgTiO3 ceramics" null (2008)
