Leachate chemistry data for solid mine waste composite samples from Silverton and Leadville, Colorado

1998 ◽  
Author(s):  
M.R. Montour ◽  
P.L. Hageman ◽  
A.L. Meier ◽  
Peter Theodorakos ◽  
Paul H. Briggs
Keyword(s):  
Mine Waste ◽  
Chemistry Data ◽  
Composite Samples

Processing and characterization of YBa2Cu3O7−x/Ag composites

1990 ◽  
Vol 48 (4) ◽  
pp. 46-47
Author(s):  
Jafar Javadpour ◽  
Bradley L. Thiel ◽  
Sarikaya Mehmet ◽  
Ilhan A. Aksay
Keyword(s):  
Composite System ◽  
Precursor Solution ◽  
Microstructural Development ◽  
Superconducting Properties ◽  
Practical Applications ◽  
Nitrate Precursor ◽  
Cold Pressed ◽  
Tape Cast ◽  
Composite Samples

Practical applications of bulk YBa2Cu3O7−x materials have been limited because of their inadequate critical current density (jc) and poor mechanical properties. Several recent reports have indicated that the addition of Ag to the YBa2Cu3O7−x system is beneficial in improving both mechanical and superconducting properties. However, detailed studies concerning the effect of Ag on the microstructural development of the cermet system have been lacking. Here, we present some observations on the microstructural evolution in the YBa2Cu3O7−x/Ag composite system.The composite samples were prepared by mixing various amounts (2.5 - 50 wt%) AgNO3 in the YBa2Cu3O7−x nitrate precursor solution. These solutions were then spray dried and the resulting powders were either cold pressed or tape cast. The microstructures of the sintered samples were analyzed using SEM (Philips 515) and an analytical TEM (Philips 430T).The SEM micrographs of the compacts with 2.5 and 50 wt% Ag addition sintered at 915°C (below the melting point of Ag) for 1 h in air are displayed in Figs. 1 and 2, respectively.

PREDICTING ACID ROCK DRAINAGE FROM A NICKEL MINE WASTE PILE AND METAL LEVELS IN SURROUNDING SOILS

2017 ◽  
Vol 16 (9) ◽  
pp. 2089-2096
Author(s):  
Artwell Kanda ◽  
George Nyamadzawo ◽  
Jephita Gotosa ◽  
Nathan Nyamutora ◽  
Willis Gwenzi
Keyword(s):  
Acid Rock Drainage ◽  
Mine Waste ◽  
Acid Rock ◽  
Metal Levels

Selected Water- and Sediment-Quality, Aquatic Biology, and Mine-Waste Data from the Ely Copper Mine Superfund Site, Vershire, VT, 1998-2007

Data Series ◽  
10.3133/ds378 ◽  
2008 ◽  
Author(s):  
Denise M. Argue ◽  
Richard G. Kiah ◽  
Nadine M. Piatak ◽  
Robert R. Seal ◽  
Jane M. Hammarstrom ◽  
...  
Keyword(s):  
Mine Waste ◽  
Sediment Quality ◽  
Superfund Site ◽  
Copper Mine ◽  
Water And Sediment ◽  
Water And Sediment Quality

Determining the toxicity potential of mine-waste piles

2003 ◽  
Author(s):  
Kathleen S. Smith ◽  
Thomas R. Wildeman ◽  
LaDonna M. Choate ◽  
Sharon F. Diehl ◽  
David L. Fey ◽  
...  
Keyword(s):  
Mine Waste ◽  
Toxicity Potential
Sign in / Sign up

Export Citation Format

Share Document