Preparation and Properties of Bi0.5Na0.5TiO3-Ba (Hf,Ti)TiO3 Lead-Free Piezoelectric Ceramics

2007 ◽  
Vol 334-335 ◽  
pp. 957-960
Author(s):  
Hu Yong Tian ◽  
Wan Ping Chen ◽  
D.Y. Wang ◽  
Y. Wang ◽  
J.T. Zeng ◽  
...  
Keyword(s):  
Piezoelectric Coefficient ◽  
Sodium Titanate ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Synthesis Process ◽  
Bismuth Sodium Titanate ◽  
Promising Candidate ◽  
Device Applications ◽  
The Relationship ◽  
Bismuth Sodium

Lead-free piezoelectric ceramics based on bismuth sodium titanate (BNT) -barium hafnate titanate (BHT) were prepared by a two-step synthesis process. The final BNT-BHT ceramics sintered at 1180oC for 2 h in air showed a perovskite structure with high density. The morphotropic phase boundaries (MPB) were found in BNT based piezoelectric ceramics with 8~10 wt% BHT in composites. In the case of Bi0.5Na0.5TiO3-0.08BaHf0.05Ti0.95O3 ceramics, a maximum piezoelectric coefficient d33 of 122.6 pC/N was obtained. The remnant polarization (Pr) and coercive field (Ec) were measured and the relationship between ferroelectricity and the BHT fraction in the compounds was investigated. The BNT-BHT ceramics were expected to be a new and promising candidate for lead-free piezoelectric device applications.

Fabrication of 0-3 Non-Lead Based Piezoceramic/Polymer Composites Using Suction Technique

2008 ◽  
Vol 55-57 ◽  
pp. 141-144 ◽  
Author(s):  
Thanapong Sareein ◽  
Wandee Thamjaree ◽  
Wim Nhuapeng ◽  
Tawee Tunkasiri
Keyword(s):  
Epoxy Resin ◽  
Piezoelectric Coefficient ◽  
Piezoelectric Properties ◽  
Active Phase ◽  
Sodium Titanate ◽  
Bismuth Sodium Titanate ◽  
Volumetric Fraction ◽  
Bismuth Sodium ◽  
Composite Samples ◽  
Properties Of Composites

In this research, 0-3 composites between non-lead based piezoceramic and polymer were fabricated using the suction technique. Bismuth sodium titanate (Bi0.5Na0.5TiO3:BNT) which prepared from conventional mixed oxide method was used as active phase whereas epoxy resin was used as matrix phase. The 50% volumetric fraction of BNT/epoxy resin can obtain from suction technique. The physical and piezoelectric properties of composites samples were examined. It can be found that density of composite samples were about 1.78 g/cm3. Moreover, the piezoelectric coefficient (d33) of sample was 13 pC/N. Furthermore, the microstructure of composites was determined using SEM technique.

Preparation and Properties of Lead Free Bismuth Sodium Titanate−Bismuth Zinc Titanate Ceramics

2009 ◽  
Vol 383 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Rangson Muanghlua ◽  
Surasak Niemcharoen ◽  
Wanwilai C. Vittayakorn ◽  
Nattapong Tungsitvisetkul ◽  
Pimjan Chinwaro ◽  
...  
Keyword(s):  
Sodium Titanate ◽  
Lead Free ◽  
Bismuth Sodium Titanate ◽  
Zinc Titanate ◽  
Titanate Ceramics ◽  
Bismuth Sodium

Phase formation and electrical properties of lead-free bismuth sodium titanate–potassium niobate ceramics

2008 ◽  
Vol 8 (3-4) ◽  
pp. 241-245 ◽  
Author(s):  
K. Pengpat ◽  
P. Jarupoom ◽  
P. Kantha ◽  
S. Eitssayeam ◽  
U. Intatha ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Phase Formation ◽  
Sodium Titanate ◽  
Lead Free ◽  
Potassium Niobate ◽  
Bismuth Sodium Titanate ◽  
Bismuth Sodium

A REVIEW ON LEAD-FREE PIEZOELECTRIC CERAMICS STUDIES IN CHINA

2011 ◽  
Vol 01 (03) ◽  
pp. 269-288 ◽  
Author(s):  
YI-QING LU ◽  
YONG-XIANG LI
Keyword(s):  
Piezoelectric Materials ◽  
Sodium Titanate ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Bismuth Sodium Titanate ◽  
Structured Materials ◽  
Environmental Friendly ◽  
Promising Area ◽  
To Come ◽  
Research Office

There are a large number of research publications on the hot topic of environmental friendly lead-free piezoelectric materials worldwide in the last decade. The number of researchers and institutions involved from China is much larger than other countries or regions. The publications by Chinese researchers cover a broad spectrum on the preparations, structures, properties and applications of lead-free piezoelectric ceramics. This has motivated us to come out with a review on recent advances in development of lead-free piezoelectric ceramics in China. The emphases are especially on the preparation and electric properties of barium titanate-based materials, bismuth sodium titanate and related materials, alkaline niobate and related materials, bismuth layer-structured materials, as well as texture engineering of ceramics and some of their single crystals. Hopefully, this could give further impetus to the researchers to continue their efforts in this promising area and also draw the attentions from legislature, research office, industrial and publics.

Recoverable Self-Polarization in Lead-Free Bismuth Sodium Titanate Piezoelectric Thin Films

2017 ◽  
Vol 9 (34) ◽  
pp. 28716-28725 ◽  
Author(s):  
Jinyan Zhao ◽  
Wei Ren ◽  
Gang Niu ◽  
Nan Zhang ◽  
Guohua Dong ◽  
...  
Keyword(s):  
Thin Films ◽  
Sodium Titanate ◽  
Lead Free ◽  
Bismuth Sodium Titanate ◽  
Piezoelectric Thin Films ◽  
Bismuth Sodium
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