Synthesis and characterization of MnO2 added (Na0.475K0.475Li0.05)(Nb0.9Ta0.05Sb0.05)O3 lead-free piezoelectric ceramics

2020 ◽  
Vol 57 (4) ◽  
pp. 440-446
Author(s):  
Jae Min Cha ◽  
Jeong Woo Lee ◽  
Byeonghoon Bae ◽  
Yong Jeong Jeong ◽  
Chang-Bun Yoon
2010 ◽  
Author(s):  
M. Pattanaik ◽  
P. Kumar ◽  
Dinesh K. Aswal ◽  
Anil K. Debnath

Author(s):  
Rosane Macchiarulo Jorge ◽  
Acácio Antonio Mesquita Furtado Filho

This paper describes the synthesis and characterization of a copper-based ballistic modifier, copper subsalicylate (monobasic copper salicylate), and its performance in green-type propellants. New lead-free ballistic modifiers and phthalatefree plasticizers with reduced toxicity, less harmful to the environment, have been employed to replace their traditional additives in green-type double-base propellant preparations. The characterization of the chemical compound was performed by FTIR, TGA-DSC, and WAXS, indicating that copper subsalicylate was obtained. The results of the characterization of propellant compositions showed that copper subsalicylate, in combination with a bismuth salt, could be a substitute for the traditional lead-based ballistic modifier producing green-type propellants without reducing ballistic performance.


2015 ◽  
Vol 98 (11) ◽  
pp. 3405-3422 ◽  
Author(s):  
Matias Acosta ◽  
Ljubomira A. Schmitt ◽  
Leopoldo Molina-Luna ◽  
Michael C. Scherrer ◽  
Michael Brilz ◽  
...  

2008 ◽  
Vol 102 (1) ◽  
pp. 52-61 ◽  
Author(s):  
M. DAMBEKALNE ◽  
M. ANTONOVA ◽  
M. LIVINSH ◽  
A. KALVANE ◽  
A. MISHNOV ◽  
...  

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