Engineering & Materials Science
Niobium
100%
Membranes
66%
Oxygen
64%
Permeation
62%
Electric Conductivity
59%
Thermal expansion
53%
Fluxes
43%
Phase stability
38%
Perovskite
36%
Positive ions
32%
Carbonates
30%
Solid solutions
29%
Helium
29%
Doping (additives)
29%
Annealing
26%
Substitution reactions
26%
X ray diffraction
26%
Nitrogen
24%
Oxides
22%
Powders
21%
Compensation and Redress
20%
Defects
18%
Gases
15%
Air
14%
Temperature
10%
Experiments
9%
Physics & Astronomy
niobium
80%
membranes
58%
oxygen
47%
thermal expansion
45%
performance
35%
electrical resistivity
33%
carbonates
29%
cations
22%
perovskites
22%
solid solutions
21%
substitutes
21%
helium
20%
nitrogen
19%
oxides
16%
annealing
15%
air
15%
room temperature
14%
defects
14%
diffraction
14%
gases
13%
x rays
11%
Chemistry
Thermal Expansion
56%
Electrical Conductivity
40%
Dioxygen
38%
Phase Stability
32%
Solid Solution
22%
Annealing
20%
Carbonate
20%
Donor
18%
Substitution Reaction
16%
Nitrogen
16%
Cation
15%
Ambient Reaction Temperature
14%
Oxide
14%
Gas
13%
X-Ray Diffraction
13%
Reduction
12%