Sol–gel coatings of low sintering temperature for corrosion protection of ZE41 magnesium alloy

The composite coatings were obtained on a magnesium alloy by micro-arc oxidation and sol-gel technique. Electrochemical impedance spectroscopy (EIS) was used to evaluate the corrosion behavior of MAO coating and composite coatings in a simulated seawater solution. The results show that corrosion behavior of the MAO coating and composite coatings are different at different immersion times. Corrosion protection of the MAO coating gradually weaken with the extension of soaking time, but corrosion protection of the composite coatings become stronger first and then weaken.

Download Full-text

Effect of sintering temperature on corrosion properties of sol–gel based Al2O3 coatings on pre-treated AZ91D magnesium alloy

Corrosion Science ◽

10.1016/j.corsci.2009.08.031 ◽

2009 ◽

Vol 51 (12) ◽

pp. 2950-2958 ◽

Cited By ~ 35

Author(s):

Xiankang Zhong ◽

Qing Li ◽

Bo Chen ◽

Juping Wang ◽

Junying Hu ◽

...

Keyword(s):

Magnesium Alloy ◽

Sintering Temperature ◽

Sol Gel ◽

Corrosion Properties ◽

Az91d Magnesium Alloy

Download Full-text

Synthesis of Al3Fe5O12 Cubic Structure by Extremely Low Sintering Temperature of Sol Gel Technique

American Journal of Engineering and Applied Sciences ◽

10.3844/ajeas.2009.76.79 ◽

2009 ◽

Vol 2 (1) ◽

pp. 76-79 ◽

Cited By ~ 3

Author(s):

Masoud

Keyword(s):

Sintering Temperature ◽

Sol Gel ◽

Gel Technique ◽

Cubic Structure ◽

Low Sintering Temperature

Download Full-text

A novel approach to heal the sol–gel coating system on magnesium alloy for corrosion protection

Electrochimica Acta ◽

10.1016/j.electacta.2009.11.063 ◽

2010 ◽

Vol 55 (7) ◽

pp. 2424-2429 ◽

Cited By ~ 41

Author(s):

Xiankang Zhong ◽

Qing Li ◽

Junying Hu ◽

Shiyan Zhang ◽

Bo Chen ◽

...

Keyword(s):

Magnesium Alloy ◽

Corrosion Protection ◽

Sol Gel ◽

Coating System ◽

Novel Approach

Download Full-text

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.66.104 ◽

2009 ◽

Vol 66 ◽

pp. 104-107 ◽

Cited By ~ 3

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.

Download Full-text