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- Berger, R, et al.
(författare)
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Potentiometric measurements of copper diffusion in polycrystalline chalcocite, chalcopyrite and bornite
- 1996
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Ingår i: Solid State Ionics. ; 89, s. 269-278
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Tidskriftsartikel (refereegranskat)abstract
- Diffusion measurements have been performed by an electrochemical potentiometric method on polycrystalline synthetic chalcocite (Cu2S), chalcopyrite (CuFeS2) and bornite (Cu5FeS4) in the temperature range 5-50 degrees C. The chemical ((D) over tilde) diffusion coefficients are as follows: chalcocite 38.7 exp(-5600/T); chalcopyrite 15.4 exp(-6000/T) and bornite 14.5 exp(-4900/T).
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4. |
- Bucur, RV, et al.
(författare)
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Quartz-crystal mass sensors with glued foil electrodes
- 1996
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Ingår i: SENSORS AND ACTUATORS B-CHEMICAL. - : ELSEVIER SCIENCE SA LAUSANNE. ; 37:1-2
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Experimental data are presented which demonstrate that a quartz-crystal resonator (QCR) works properly with glued metallic foils both as a quartz-crystal microbalance (QCM) (up to a specific load of about 3 x 10(-2) g cm-2) and as an electrochemical QCM
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5. |
- Mecea, VM, et al.
(författare)
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Extensions of the quartz-crystal-microbalance technique
- 1996
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Ingår i: SENSORS AND ACTUATORS A-PHYSICAL. - : ELSEVIER SCIENCE SA LAUSANNE. ; 53:1-3
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The high mass sensitivity of the quartz-crystal microbalance is explained by the very high acceleration of the particles on the surface of the quartz resonators. The sensing properties of quartz resonators in contact with a solid, liquid or gas medium ar
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