Tellurite And Fluorotellurite Glasses For Active And Passive

Glossary; MDO
SD = standard deviation
SE = secondary electron
SEM = scanning electron microscopy
σ = stress
σn = photoelectric cross-section of species n
t = time
T = temperature
T0 = temperature parameter for viscosity modelling
tbp = trigonal bipyramid
Tc = peak crystallisation temperature
TEC = thermal expansion coefficient
TEM = transmission electron microscope
Tf = fictive temperature
Tg = glass transition temperature
Tl = liquidus temperature
Tm = melting temperature
TMA = thermal mechanical analysis
tn = time on the TTT nose
Tn = corresponding temperature to tn on the TTT nose
Tnd = preform neck down temperature
tp = trigonal pyramid
Ts = solidus temperature
Tss = steady state fibre drawing temperature
TTT = time-temperature-transformation (diagram / plot)
Tx = onset of crystallisation temperature
TZN = TeO2-Na2O-ZnO
Tη = temperature corresponding to a viscosity of 10 4.5 Pa.s
τc = cation valence
u = crystal growth rate
UV = ultraviolet
υ = quantum number
v = crack velocity
V = volume
VA = volume of acid / alkali species in solution
Vtotal = total volume of acid / alkali solution
Vdw,= volume of distilled water in an acid / alkali solution
V0 = volume of glass containing 1 g.atom of oxygen
VFT = Vogel-Fulcher-Tamman (viscosity model)
ϖ = fundamental frequency
Wd = working distance in SEM
WDM = wavelength division multiplexing
ω = angular frequency
x = depth
XRD = X-ray diffraction
XRF = X-ray fluorescence
XPS = X-ray photoelectron spectroscopy
Y = Young’s modulus
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