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KNN-based Piezoelectric Ceramics Market Trends
Potassium sodium niobate (KNN) is a perovskite-structured material with the chemical formula (K,Na)NbO3. KNN is a lead-free ferroelectric material with excellent piezoelectric properties, used in sensors, actuators, and energy harvesting devices. It is a promising alternative to lead-based piezo ceramics in the field of electromechanical conversion.
Figure00001. Global KNN-based Piezoelectric Ceramics Market Size (US$ Million), 2020-2031
Source: QYResearch, "KNN-based Piezoelectric Ceramics - Global Market Share and Ranking, Overall Sales and Demand Forecast 2025-2031”
Key Market Trend:
High-performance Material Optimization: Ongoing research focuses on improving piezoelectric coefficients and thermal stability through doping strategies (e.g., Li, Sb) and advanced sintering techniques like two-step sintering (TSS), which reduces alkali metal volatility and enhances densification.
Policy-Driven Market Growth: Stricter environmental regulations (e.g., EU RoHS, China's "Dual Carbon" policy) mandate lead-free alternatives, accelerating KNN adoption in consumer electronics and industrial sectors.
Key Market Driver:
Regulations are in place to restrict the use of lead in commercial products and these are expected to become even stricter in the future. For example, the draft revision of the EU RoHS Directive has clearly tightened the lead content limit of piezoelectric materials from the current 0.1% to 0.05%. The search for lead-free alternatives to Pb(Zr, Ti)O3 (PZT) piezoelectric ceramics has become a major topic in functional materials research due to legislation in many countries that restricts the use of lead alloys and compounds in commercial products.
Key Market Resistance:
Technical Performance Gaps: KNN ceramics still lag behind lead-based materials (e.g., PZT) in piezoelectric coefficients, temperature stability, and mechanical durability, limiting applications requiring high precision or extreme environments.
Figure00002. Global KNN-based Piezoelectric Ceramics Top 4 Players Ranking and Market Share (Ranking is based on the revenue of 2024, continually updated)
Source: QYResearch, "KNN-based Piezoelectric Ceramics - Global Market Share and Ranking, Overall Sales and Demand Forecast 2025-2031”
According to QYResearch Top Players Research Center, the global key manufacturers of KNN-based Piezoelectric Ceramics include PI Ceramic, CTS, Niterra, Tsingfeng Technology, etc. In 2024, the global top three players had a share approximately 93.0% in terms of revenue.
In terms of product type, currently D33: 100-200 pC/N is the largest segment, hold a share of 51%.
In terms of product application, currently Medical is the largest segment, hold a share of 44%.
Currently, Europe is the largest consumer of KNN-based Piezoelectric Ceramics, with a market share of more than 49% in 2024, followed by North America with a market share of approximately 25%.
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