Low temperature sintering properties of Y-doped BaTiO3 ceramics by BaB2O4 sintering aid

2009 ◽  
Vol 86 (11) ◽  
pp. 2320-2323 ◽  
Author(s):  
Myongil Kong ◽  
Shenglin Jiang ◽  
Tiantian Xie ◽  
Haibo Zhang
Keyword(s):  
Low Temperature ◽  
Low Temperature Sintering ◽  
Sintering Aid ◽  
Sintering Properties

Low-Temperature Sintering and Microwave Dielectric Properties of the Zn2SiO4 Ceramics

2009 ◽  
Vol 66 ◽  
pp. 104-107 ◽  
Author(s):  
Ying Dai ◽  
Yao Sun ◽  
Wen Chen
Keyword(s):  
Dielectric Properties ◽  
Solid State ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Sol Gel ◽  
Microwave Dielectric Properties ◽  
Low Temperature Sintering ◽  
Sintering Aid ◽  
Microwave Dielectric ◽  
Low Sintering Temperature

Willemite ceramics (Zn2SiO4) possess excellent millimeter-wave dielectric properties, but it also has a high sintering temperature above 1300°C by traditional solid-state reaction and relatively large negative τf value. Zn2SiO4 nanoparticles synthesized by Sol–Gel method were used to improve the sintering and dielectric properties of the Zn2SiO4 ceramics. Using the nanoparticles, Zn2SiO4 ceramics can be sintered at a low temperature, 1150°C and exhibited improved microwave dielectric properties of εr =6.62, Q × f=24500 GHz, τf =-59ppm/°C. By adding TiO2 with high positive τf value (+450 ppm/°C) and CuO as sintering aid, near zero τf value and low sintering temperature can be achieved. With 11wt% of TiO2 and 5 wt% of CuO, an εr value of 9.3, a Q × f value of 12200GHz and a τf value of -11 ppm/°C were obtained at 1000°C, confirming the promising potential of the CuO-added TiO2-Zn2SiO4 ceramics as candidate materials for low–temperature cofired ceramic (LTCC) devices.

Low-temperature sintering of Al2O3 ceramics doped with 4CuO-TiO2-2Nb2O5 composite oxide sintering aid

2020 ◽  
Vol 40 (15) ◽  
pp. 5504-5510 ◽  
Author(s):  
Yan Yang ◽  
Mingsheng Ma ◽  
Faqiang Zhang ◽  
Feng Liu ◽  
Guanyu Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Low Temperature Sintering ◽  
Composite Oxide ◽  
Sintering Aid

Low temperature sintering of high performance KNN-based lead-free piezoelectric ceramic using BCBM frit as sintering aid

2013 ◽  
Vol 31 (1-2) ◽  
pp. 42-47 ◽  
Author(s):  
Yue-Ming Li ◽  
Zong-Yang Shen ◽  
Zu-Gui Xiao ◽  
Zhu-Mei Wang ◽  
Wen-Qin Luo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Piezoelectric Ceramic ◽  
High Performance ◽  
Lead Free ◽  
Low Temperature Sintering ◽  
Sintering Aid

Low-Temperature Sintering of ZnO–TiO2 Ceramics

2015 ◽  
Vol 137 (3) ◽  
Author(s):  
Zhengwei Nie ◽  
Yuyi Lin ◽  
Feixue Wang
Keyword(s):  
Low Temperature ◽  
Vanadium Pentoxide ◽  
Material Properties ◽  
Sintering Temperature ◽  
Theoretical Density ◽  
Sintering Behavior ◽  
Low Temperature Sintering ◽  
Sintering Aid

Vanadium pentoxide (V2O5) was chosen as a sintering aid to lower the sintering temperature of the ZnO–TiO2 system. The effect of V2O5 on the sintering behavior and material properties of ZnO–TiO2 ceramics and cermets made of ZnO–TiO2 ceramics and copper (Cu) was investigated as a function of V2O5 percentage and sintering temperature. Densities and hardness of the specimens were improved with an increase of V2O5 up to 2 wt. %. The sintering temperature of the specimens can be reduced to below 1000 °C. The properties of ZnO–TiO2 ceramics and cermets made from ZnO–TiO2 ceramics and Cu with V2O5 are strongly dependent on the sintering temperature. The density of ZnO–TiO2 ceramics and cermets was increased up to 95%, 90% of theoretical density at 900–920 °C, 960–1000 °C, respectively, for 4 hrs.

scholarly journals A mild aqueous synthesis of ligand-free copper nanoparticles for low temperature sintering nanopastes with nickel salt assistance

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hiroshi Imamura ◽  
Yoichi Kamikoriyama ◽  
Atsushi Muramatsu ◽  
Kiyoshi Kanie
Keyword(s):  
Low Temperature ◽  
Organic Ligand ◽  
Particle Diameter ◽  
Nitrogen Atmosphere ◽  
Nickel Salt ◽  
Low Temperature Sintering ◽  
Resource Saving ◽  
Aqueous Synthesis ◽  
Ligand Free ◽  
Sintering Properties

AbstractAn organic ligand-free aqueous-phase synthesis of copper (Cu) nanoparticles (NPs) under an air atmosphere was successfully achieved by reducing copper(II) oxide particles with a leaf-like shape in the presence of Ni salts at room temperature. The resulting Cu NPs with a mean particle diameter of ca. 150 nm exhibited low-temperature sintering properties due to their polycrystalline internal structure and ligand-free surface. These Cu NPs were applied to obtain Cu NP-based nanopastes with low-temperature sintering properties, and the resistivities of the obtained Cu electrodes after annealing at 150 °C and 200 °C for 30 min were 64 μΩ∙cm and 27 μΩ∙cm, respectively. The bonding strength between oxygen-free Cu plates prepared using the Cu NP-based nanopastes reached 32 MPa after pressure-less sintering at 260 °C for 30 min under a nitrogen atmosphere. The developed manufacturing processes using the developed Cu nanopastes could provide sustainable and low-CO2-emission approaches to obtain Cu electrodes on flexible films and high-strength bonding between metal plates as die-attach materials for power devices under energy- and resource-saving conditions.

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