Title:
SINTERING AIDS FOR LANTHANIDE CERAMICS
Document Type and Number:
WIPO Patent Application WO/2012/116188
Kind Code:
A3
Abstract:
This disclosure relates to a method of densifying a lanthanide chromite ceramic or a mixture containing a lanthanide chromite ceramic comprising mixing one or more lanthanide chromite ceramics with one or more sintering aids, and sintering the mixture. The one or more lanthanide chromite ceramics are represented by the formula (Ln1-xAEx)zCr1-yBy03-delta, wherein Ln is a lanthanide element or yttrium, AE is one or more alkaline earth elements, B is one or more transition metals, x is a value less than 1, Y is a value less than or equal to 0.5, and z is a value from 0.8 to 1.2. The sintering aids comprise one or more spinel oxides. The one or more spinel oxides of the formula AB20 4 or A2B04 wherein A and B are cationic materials having an affinity for B site occupancy in a lanthanide chromite ceramic structure, e.g., ZnMn204, MgMn204, MnMn204 and COMn204.
Inventors:
SEABAUGH MATTHEW M (US)
SWARTZ SCOTT LAWRENCE (US)
SWARTZ SCOTT LAWRENCE (US)
Application Number:
PCT/US2012/026334
Publication Date:
October 18, 2012
Filing Date:
February 23, 2012
Export Citation:
Assignee:
NEXTECH MATERIALS LTD (US)
SEABAUGH MATTHEW M (US)
SWARTZ SCOTT LAWRENCE (US)
SEABAUGH MATTHEW M (US)
SWARTZ SCOTT LAWRENCE (US)
International Classes:
C04B35/00; B22F1/142
Foreign References:
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| US4866013A | 1989-09-12 | |||
| US20100193104A1 | 2010-08-05 | |||
| US20080006532A1 | 2008-01-10 | |||
| US4631238A | 1986-12-23 | |||
| US5298469A | 1994-03-29 | |||
| US5169811A | 1992-12-08 | |||
| US5185301A | 1993-02-09 | |||
| US5143751A | 1992-09-01 | |||
| US4128776A | 1978-12-05 | |||
| US4292209A | 1981-09-29 | |||
| US5171646A | 1992-12-15 | |||
| US5864576A | 1999-01-26 |
Other References:
ZHU ET AL.: "Development of interconnect materials for solid oxide fuel cells.", MATERIALS SCIENCE AND ENGINEERING, vol. A348, 2003, pages 227 - 243
Attorney, Agent or Firm:
COON, Gerald, L. (Greenley Ruggiero & Perle, LLP,One Landmark Square,10th Floo, Stamford CO, US)
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