handbook of carbon, graphite, diamond and fullerenes

More documents

Recommendations

Info

Molded Graphite 105 increase (due to increase in specific heat), the conductivity decreases (due to increasing phonon scattering) and, at 2000°C, it is an order of magnitude lower than at room temperature. This relationship is shown in Fig. 5.8. 400 800 1200 1600 2000 Temperature °C Figure 5.8. Relative thermal conductivity of molded graphite as a function of temperature.' 12 ' Thermal Expansion. The thermal expansion of the graphite crystal was reviewed in Ch. 3, Sec. 4.4. This expansion has a marked anisotropy. It is low in the ab directions (lower than most materials) but an order of magnitude higher in the c direction. Molded-graphite materials have a much more isotropic thermal expansion than the graphite crystal, since the crystallites are randomly oriented and the inherent porosity absorbs a portion of the expansion. Still some degree of anisotropoy remains in extruded- and compression-molded graphites and the coefficient of thermal expansion (CTE) across the grain is typically 50% higher than with the grain. The CTE of isostatically molded graphites can be essentially isotropic. The CTE of molded graphite increases with temperature, as shown in Fig. 5.9. At 1500°C, it is approximately twice the room temperature value. Yet, it remains low compared to most other structural materials as shown in Table 5.8J 14 )
106 Carbon, Graphite, Diamond, and Fulierenes i l l i i i i i 400 800 1200 1600 2000 Temperature, °C Figure 5.9. Average coefficient of thermal expansion (CTE) of graphite as a function of temperature. Table 5.8. Thermal Expansion of Typical Molded Graphite and Other Materials Material Extruded Graphite with grain across grain Isostatic Graphite Aluminum Copper Tungsten CTE m/nv°Cx10- 6 (100-600°C) 1.8-2.9 3.2 - 5.0 3.2-5.7 23.5 (@ 25"C) 16.6(@25°C) 4.5 (@ 25°C)
Page 1 and 2:
HANDBOOK OF CARBON, GRAPHITE, DIAMO
Page 3 and 4:
Contents 1 Introduction and General
Page 5 and 6:
xii Contents 5.0 ELECTRICAL PROPERT
Page 7 and 8:
xiv Contents 2.0 THE CVD OF PYROLYT
Page 9 and 10:
xvi Contents 6.0 CERAMIC-MATRIX, CA
Page 11 and 12:
xviii Contents 4.0 NATURAL AND HIGH
Page 13 and 14:
xx Contents 2.0 STRUCTURE OF THE FU
Page 15 and 16:
Preface ix technology, processes, e
Page 17 and 18:
2 Carbon, Graphite, Diamond, and Fu
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
10 Carbon, Graphite, Diamond, and F
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70: 54 Carbon, Graphite, Diamond, and F
Page 85 and 86: Synthetic Carbon and Graphite: Carb
Page 115 and 116: 100 Carbon, Graphite, Diamond, and
Page 119: 104 Carbon, Graphite, Diamond, and
Page 137 and 138: Vitreous Carbon 1.0 GENERAL CONSIDE
Page 171 and 172:
156 Carbon, Graphite, Diamond, and
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
8 Carbon Fibers 1.0 GENERAL CONSIDE
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Applications of Carbon Fibers 1.0 C
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
10 Natural Graphite, Graphite Powde
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
11 Structure and Properties of Diam
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Page 281 and 282:
Page 283 and 284:
Page 285 and 286:
Page 287 and 288:
Page 289 and 290:
Page 291 and 292:
Page 293 and 294:
12 Natural and High-Pressure Synthe
Page 295 and 296:
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
Page 305 and 306:
Page 307 and 308:
Page 309 and 310:
Page 311 and 312:
Page 313 and 314:
Page 315 and 316:
Page 317 and 318:
13 CVD Diamond 1.0 INTRODUCTION The
Page 319 and 320:
Page 321 and 322:
Page 323 and 324:
Page 325 and 326:
Page 327 and 328:
Page 329 and 330:
Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
Page 337 and 338:
Page 339 and 340:
Page 341 and 342:
Page 343 and 344:
Page 345 and 346:
Page 347 and 348:
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
Page 365 and 366:
Page 367 and 368:
Page 369 and 370:
Page 371 and 372:
15 The Fullerene Molecules 1.0 GENE
Page 373 and 374:
Page 375 and 376:
Page 377 and 378:
Page 379 and 380:
Page 381 and 382:
Page 383 and 384:
Page 385 and 386:
Page 387 and 388:
Page 389 and 390:
Glossary Ablation: The removal of m
Page 391 and 392:
Page 393 and 394:
Page 395 and 396:
Page 397 and 398:
Page 399 and 400:
Index Ablation 38 Absorption bands
Page 401 and 402:
Page 403 and 404:
Page 405 and 406:
Page 407 and 408:
Page 409 and 410:
Page 411 and 412:
Page 413 and 414:
Page 415 and 416:
Copyright © 1993 by Noyes Publicat
Page 417:
vi Series HANDBOOK OF CHEMICAL VAPO
show all

handbook of carbon, graphite, diamond and fullerenes

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?