Grinding methods effects on the synthesis of Potassium-Sodium Niobate powders by oxide mixing
Open Access
- 20 September 2019
- journal article
- Published by Instituto Tecnologico Metropolitano (ITM) in TecnoLógicas
- Vol. 22 (46), 15-23
- https://doi.org/10.22430/22565337.1269
Abstract
Piezoelectric materials are widely used in electronic devices and, traditionally, various lead-based materials have been implemented in such applications. However, because of the damage caused by lead, other materials with similar characteristics that do not cause a negative impact on human health and the environment have been developed. A material with those characteristics is potassium-sodium niobite K0.5Na0.5 Nbo3. In this study, we investigate the thermogravimetric, structural, and microstructural properties of powders of such system obtained through oxide mixing with the aim of establishing the effect and efficiency of grinding (using a horizontal and a planetary ball mill grinder) on the production of the final material. It was determined that horizontal grinding and calcination at 900°C create the optimal conditions for obtaining K0.5Na0.5 Nbo3 powders, by oxide mixing, with the adequate structure and microstructure to continue the densification and/or doping processes.Keywords
This publication has 21 references indexed in Scilit:
- The impact of chemical heterogeneity in lead-free (K, Na)NbO3 piezoelectric perovskite: Ferroelectric phase coexistenceActa Materialia, 2019
- Processing and characterization of lead-free ceramics on the base of sodium–potassium niobateJournal of Advanced Dielectrics, 2018
- Structural and optical properties of (K,Na)NbO3 nanoparticles synthesized by a modified sol–gel method using starch mediaAdvanced Powder Technology, 2015
- (K,Na)NbO3‐Based Lead‐Free Piezoceramics: Fundamental Aspects, Processing Technologies, and Remaining ChallengesJournal of the American Ceramic Society, 2013
- Role of sintering time, crystalline phases and symmetry in the piezoelectric properties of lead-free KNN-modified ceramicsMaterials Chemistry and Physics, 2010
- Update on the Clinical Management of Childhood Lead PoisoningPediatric Clinics of North America, 2007
- Lead-free piezoelectric ceramics: Alternatives for PZT?Journal of Electroceramics, 2007
- Ferroelectric and Piezoelectric Properties of Fine‐Grained Na0.5K0.5NbO3 Lead‐Free Piezoelectric Ceramics Prepared by Spark Plasma SinteringJournal of the American Ceramic Society, 2005
- Lead Free Piezoelectric MaterialsJournal of Electroceramics, 2004
- Hot Pressing of Potassium‐Sodium NiobatesJournal of the American Ceramic Society, 1962