Pyrochlore - Wikipedia
Pyrochlore (Na, Ca)2 Nb 2 O 6(OH, F) is a mineral group of the niobium end member of the pyrochlore supergroup. Pyrochlore is also a term for the crystal structure F d 3 m. The name is …
Pyrochlore | Structure, Properties, Uses | Britannica
pyrochlore, a complex oxide mineral [(Na, Ca) 2 Nb 2 O 6 (OH,F)] composed of niobium, sodium, and calcium that forms brown to black, glassy octahedral crystals and irregular masses. …
烧绿石 - 百度百科
产于基性岩、伟晶岩或碳酸岩中，往往与锆石、磷灰石、钙钛矿等共生，是提取稀有土元素、铌、钽及放射性元素的重要矿物原料。 烧绿石是一种氧化 矿物，是提取 铌 的重要矿物原料。 它 …
烧绿石 - 维基百科，自由的百科全书
烧绿石 （英语：Pyrochlore）是一类含 铌 矿物，化学式可表示为 Na, Ca) 2 Nb 2 O 6 (OH, F)。 烧绿石也是通式为A 2 B 2 O 7 （其中A和B均为金属）的晶体的结构。 烧绿石最初于1826年 …
Pyrochlore - an overview | ScienceDirect Topics
Pyrochlore is defined as an anion-deficient derivative of the fluorite structure type, characterized by a doubled cell parameter 'a' and a change in space group. It consists of cations in eightfold …
Pyrochlore Supergroup: Mineral information, data and localities.
The pyrochlore supergroup is a group of chemically complex cubic oxides. The classification of the pyrochlore supergroup is based on the ions at the A, B and Y sites. A correct identification …
（一）：介绍一下pyrochlore iridates - 知乎 - 知乎专栏
什么是pyrochlore iridates？ 基本上可以理解为具有烧绿石(pyrochlore)结构的铱(Ir)的氧化物。 化学式为A2Ir2O7(A=Y,Bi or Ln),其中A可以是Y,Bi,也可以是 镧系元素 。
Pyrochlore - an overview | ScienceDirect Topics
Pyrochlores are another large group of complex metal oxide compounds with the general formula of A2 B 2 O 7 (A and B are metals).
Cava Lab: Pyrochlore - Princeton University
Ca 2 Nb 2 O 6 F (download cif) is the nominal pyrochlore mineral. The general formula for Pyrochlore is A 2 B 2 O 7, or more accurately: A 2 B 2 O 6 O'. In the case of nominal …
Universal geometric frustration in pyrochlores - Nature
2018年7月5日 · Here we report the observation of structural instability present in the pyrochlores A2 Zr 2 O 6 Oʹ (A = Pr, La) and Yb 2 Ti 2 O 6 Oʹ, that exists despite ideal stoichiometry, ideal …
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