Publication number: 20160355407
Abstract: Novel colored compounds with a hibonite structure and a method for making the same are disclosed. The compounds may have a formula AAl12-x-yMaxMbyO19 where A is typically an alkali metal, an alkaline earth metal, a rare earth metal, Pb, Bi or any combination thereof, and Ma is Ni, Fe, Cu, Cr, V, Mn, or Co or any combination thereof, and Mb is Ti, Sn, Ge, Si, Zr, Hf, Ga, In, Zn, Mg, Nb, Ta, Sb, Mo, W or Te or any combination thereof. Compounds with varying colors, such as blue, can be made by varying A, Ma and Mb and their relative amounts. Compositions comprising the compounds and methods for making and using the same are also disclosed.
Type:
Application
Filed:
August 16, 2016
Publication date:
December 8, 2016
Applicant:
OREGON STATE UNIVERSITY
Inventors:
MUNIRPALLAM A. SUBRAMANIAN, ARTHUR W. SLEIGHT, JUN LI
Publication number: 20050229963
Abstract: The present invention provides an indium-doped CO4Sb12 skutterudite composition in which some Co on the cubic lattice structure may be replaced with one or more members of the group consisting of Fe, Ni, Ru, Rh, Pd, Ir and Pt; some Sb on the planar rings may be replaced by one or more members of the group consisting of Si, Ga, Ge and Sn; and a second dopant atom is selected from a member of the group consisting of Ca, Sc, Zn, Sr, Y, Pd, Ag, Cd, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. The composition is useful as a thermoelectric material. In preferred embodiments, the composition has a figure of merit greater than 1.0. The present invention also provides a process for the production of the composition, and thermoelectric devices using the composition.
Type:
Application
Filed:
April 14, 2005
Publication date:
October 20, 2005
Inventors:
Tao He, James Krajewski, Munirpallam Subramanian