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Piezoceramic composition and method for manufacturing the same
A piezoceramic composition comprises, as the main phase, a crystalline phase of a perovskite structure signified as formula ABO3, with Element A consisting of one or more elements selected from among K (potassium), Na (sodium) and Li (lithium) and with Element B consisting of one or more elements selected from among Nb (niobium), Ta (tantalum) and Sb (antimony), with Elements A and B comprising other elements as additives. An X-ray diffraction profile of crushed particles of the piezoceramic composition that are 10 μm or less in diameter has a diffraction peak indicating the presence of the main (single) phase as well as a heterogeneous phase of a crystalline structure signified as formula AsBtOu (s
Piezoceramic composition and method for manufacturing the same
A piezoceramic composition comprises, as the main phase, a crystalline phase of a perovskite structure signified as formula ABO3, with Element A consisting of one or more elements selected from among K (potassium), Na (sodium) and Li (lithium) and with Element B consisting of one or more elements selected from among Nb (niobium), Ta (tantalum) and Sb (antimony), with Elements A and B comprising other elements as additives. An X-ray diffraction profile of crushed particles of the piezoceramic composition that are 10 μm or less in diameter has a diffraction peak indicating the presence of the main (single) phase as well as a heterogeneous phase of a crystalline structure signified as formula AsBtOu (s
Piezoceramic composition and method for manufacturing the same
NAGAREDA KENJI (Autor:in) / DONG DUNZHUO (Autor:in)
27.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
H01L
Halbleiterbauelemente
,
SEMICONDUCTOR DEVICES
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
METHOD FOR PRECIPITATION HARDENING OF A PIEZOCERAMIC, AND PIEZOCERAMIC
Europäisches Patentamt | 2024
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