Tellurite And Fluorotellurite Glasses For Active And Passive

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5. Crystallisation studies; MDO 147 Lin (Counts) 17000 16000 15000 14000 13000 12000 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 d=5.66260 d=4.06262 d=3.81913 d=3.56584 d=3.37999 d=3.31475 d=2.84605 d=2.61629 d=2.22306 d=2.21507 d=2.26889 d=2.02414 d=1.91594 d=1.88452 d=1.85366 10 20 30 40 50 60 70 80 90 100 2-Theta - Scale DEP01 - File: DEP01.RAW - Type: 2Th/Th locked - Start: 10.000 ° - End: 100.000 ° - Step: 0.020 ° - Step time: 1. s - Temp.: 239 °C - Time Started: 0 s - 2-Theta: 10.000 ° - Theta: 5.000 ° - Chi: 0.00 ° - Phi: Operations: Import 74-0944 (C) - Ammonium Silicon Fluoride - (NH4)3SiF6F - Y: 50.00 % - d x by: 1. - WL: 1.5406 - Tetragonal - a 8.04000 - b 8.04000 - c 5.84500 - alpha 90.000 - beta 90.000 - gamma 90.000 - Primitive - P4/ 35-0758 (*) - Ammonium Fluoride - NH4F - Y: 50.00 % - d x by: 1. - WL: 1.5406 - Hexagonal - a 4.4408 - b 4.44080 - c 7.1726 - alpha 90.000 - beta 90.000 - gamma 120.000 - Primitive - P63mc (186) - 2 - 12 Fig. (5.8): Deposit from fluorination on silica liner lid in glovebox (⎯ JCPDS card number 74-0944 (NH4)3SiF6F, tetragonal; ⎯ JCPDS card number 35-0758 NH4F, hexagonal, P63mc). Table (5.6): Ten most intense peaks with corresponding 2θ (observed and theoretical) and Miller indices for deposit from fluorination on silica liner lid in glovebox. Observed 2θθθθ / ° Observed intensity / % Theoretical 2θθθθ / ° Theoretical intensity / % Phase hkl JCPDS Card 15.64860 5.7 15.58618 100 (NH4)3SiF6F 110 74-0944 21.87498 7.5 21.80589 65 (NH4)3SiF6F 111 " 23.28796 54.0 23.11875 100 NH4F 100 35-0758 24.96701 100.0 24.81206 44 NH4F 002 " 26.36295 40.8 26.27801 53 NH4F 101 " 34.25556 16.7 34.16474 22 NH4F 102 " 40.53863 31.6 40.56329 42 NH4F 110 " 40.69070 20.6 40.40954 12 (NH4)3SiF6F 320 74-0944 44.70528 14.0 44.57491 30 NH4F 103 35-0758 48.19427 10.7 48.11534 17 NH4F 112 " d=1.42275 d=1.28553 d=1.24208
5. Crystallisation studies; MDO 148 Glass melting During glass melting the melt volatilised, particularly for the fluorotellurite melts, due to the presence of volatile fluoride compounds. The deposit left on the silica liner and lid was collected after melting glass MOF005 (70TeO2-10Na2O-20ZnF2, mol. %) for 12 hours at 800°C in the glovebox under nitrogen. Fig. (5.9) shows the XRD trace of this deposit. Lin (Counts) 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 d=4.03809 d=3.37720 d=3.08511 d=2.96683 d=2.39384 d=2.06142 d=1.89726 d=1.86598 d=1.69532 d=1.65589 10 20 30 40 50 60 70 80 90 100 2-Theta - Scale lindep - File: Melt_Deposit.RAW - Type: 2Th/Th locked - Start: 10.000 ° - End: 100.000 ° - Step: 0.020 ° - Step time: 1. s - Temp.: 25 °C (Room) - Time Started: 0 s - 2-Theta: 10.000 ° - Theta: 5.000 ° - Aux1: Operations: Import 42-1365 (*) - Paratellurite, syn - TeO2 - Y: 50.00 % - d x by: 1. - WL: 1.54056 - Tetragonal - a 4.81011 - b 4.81011 - c 7.6122 - alpha 90.000 - beta 90.000 - gamma 90.000 - Primitive - P41212 (92) - 4 - 176. Fig (5.9): XRD trace of deposit left on the silica liner and lid after melting glass MOF005 (70TeO2-10Na2O-20ZnF2, mol. %) for 12 hours at 800°C in glovebox under nitrogen (⎯ JCPDS card number 42-1365: TeO2, tetragonal, P41212). The deposit was identified using JCPDS card number 42-1365: TeO2, tetragonal, space group P41212. Table (5.7) shows the ten most intense peaks with corresponding 2θ (observed and theoretical) and Miller indices. d=1.51705 d=1.48850 d=1.47395 d=1.26612 d=1.25684 d=1.18642
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TELLURITE AND FLUOROTELLURITE GLASS
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Abstract Glasses systems based on T
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Contents; MDO i Contents Contents i
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Contents; MDO iii 6.1.2.1. Method a
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Glossary; MDO Glossary aM = partial
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Glossary; MDO λ = wavelength λn =
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Glossary; MDO Ψ = complex dielectr
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1. Introduction; MDO 2 communicatio
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1. Introduction; MDO 4 Infrared tra
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1. Introduction; MDO 6 1.4. Thesis
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1. Introduction; MDO 8 [14] J. E. S
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2. Literature review; MDO 10 one of
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2. Literature review; MDO 12 superc
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2. Literature review; MDO 14 2.2.2.
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2. Literature review; MDO 16 phenom
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2. Literature review; MDO 18 tenden
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2. Literature review; MDO 20 crysta
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2. Literature review; MDO 22 the Za
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2. Literature review; MDO 26 Champa
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2. Literature review; MDO 28 the ad
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2. Literature review; MDO 30 (a) (b
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2. Literature review; MDO 32 showed
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2. Literature review; MDO 34 absorp
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2. Literature review; MDO 36 sharp
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2. Literature review; MDO 38 near f
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2. Literature review; MDO 40 where
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2. Literature review; MDO 42 Transm
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2. Literature review; MDO 44 origin
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2. Literature review; MDO 46 4 α =
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2. Literature review; MDO 48 Bragli
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2. Literature review; MDO 50 It can
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2. Literature review; MDO 52 and su
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2. Literature review; MDO 54 be bro
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2. Literature review; MDO 58 Table
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2. Literature review; MDO 62 [20] J
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2. Literature review; MDO 64 [47] S
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3. Glass batching and melting; MDO
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4. Thermal properties and glass sta
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6. Optical properties; MDO 198 Fig.
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6. Optical properties; MDO 200 Abso
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6. Optical properties; MDO 202 6.2.
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6. Optical properties; MDO 204 Loss
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6. Optical properties; MDO 208 Tabl
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6. Optical properties; MDO 214 Loss
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Refractive index, n , at 632.8 nm 6
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6. Optical properties; MDO 228 tell
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6. Optical properties; MDO 230 mole
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6. Optical properties; MDO 232 occu
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6. Optical properties; MDO 234 The
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6. Optical properties; MDO 236 addi
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6. Optical properties; MDO 238 an o
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6. Optical properties; MDO 240 30 m
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6. Optical properties; MDO 242 Fig.
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6. Optical properties; MDO 244 zinc
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6. Optical properties; MDO 246 [4]
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6. Optical properties; MDO 248 [32]
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7. Surface properties; MDO 250 7.1.
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7. Surface properties; MDO 252 For
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7. Surface properties; MDO 254 can
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7. Surface properties; MDO 256 wher
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7. Surface properties; MDO 258 etch
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7. Surface properties; MDO 260 Elem
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7. Surface properties; MDO 262 All
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7. Surface properties; MDO 264 beco
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7. Surface properties; MDO 266 prov
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7. Surface properties; MDO 268 cont
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7. Surface properties; MDO 270 LaB6
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7. Surface properties; MDO 272 7.2.
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7. Surface properties; MDO 274 Tabl
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7. Surface properties; MDO 276 This
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7. Surface properties; MDO 278 It c
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7. Surface properties; MDO 280 Fig.
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7. Surface properties; MDO 282 CPS
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7. Surface properties; MDO 288 samp
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7. Surface properties; MDO 290 20
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7. Surface properties; MDO 292 20
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7. Surface properties; MDO 294 Wt.
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7. Surface properties; MDO 296 It c
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7. Surface properties; MDO 300 The
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7. Surface properties; MDO 302 Wt.
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7. Surface properties; MDO 304 All
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7. Surface properties; MDO 306 The
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[Zn(OH,F)F] / mol. % 7. Surface pro
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7. Surface properties; MDO 310 bind
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7. Surface properties; MDO 312 ZnF2
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7. Surface properties; MDO 314 clea
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7. Surface properties; MDO 316 have
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7. Surface properties; MDO 320 quan
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7. Surface properties; MDO 322 ∫
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7. Surface properties; MDO 324 This
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7. Surface properties; MDO 326 Ther
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7. Surface properties; MDO 328 [2]
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8. Fibre drawing; MDO 330 8. Fibre
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8. Fibre drawing; MDO 332 The data
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8. Fibre drawing; MDO 334 Table (8.
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Preform 8. Fibre drawing; MDO 336 S
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8. Fibre drawing; MDO 338 (a) (b) F
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8. Fibre drawing; MDO 340 Log10(η)
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8. Fibre drawing; MDO 342 sectioned
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8. Fibre drawing; MDO 344 Fig. (8.9
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8. Fibre drawing; MDO 350 Crystals
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8. Fibre drawing; MDO 352 8.2.4. Op
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8. Fibre drawing; MDO 354 Table (8.
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8. Fibre drawing; MDO 356 confirmed
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8. Fibre drawing; MDO 358 Log10(η)
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8. Fibre drawing; MDO 360 It can be
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8. Fibre drawing; MDO 362 undercool
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8. Fibre drawing; MDO 364 1. 2. 3.
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8. Fibre drawing; MDO 366 cross-sha
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8. Fibre drawing; MDO 368 A small n
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8. Fibre drawing; MDO 370 particles
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8. Fibre drawing; MDO 372 8.5. Refe
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8. Fibre drawing; MDO 374 [25] D. M
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9. Conclusions; MDO 376 optical bas
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9. Conclusions; MDO 378 • The as-
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9. Conclusions; MDO 380 9.3. Optica
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9. Conclusions; MDO 382 • For fib
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9. Conclusions; MDO 384 edge across
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9. Conclusions; MDO 386 • For gla
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9. Conclusions; MDO 388 • The Ag
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9. Conclusions; MDO 390 • Increas
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9. Conclusions; MDO 392 [5] I. Shal
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10. Future work; MDO 394 Fig. (10.1
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Temperature / o C 10. Future work;
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Tellurite And Fluorotellurite Glasses For Active And Passive

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