Knowledge

Elinvar

Source đź“ť

22: 261: 105: 323: 298: 43: 272:
that followed, were minimally affected by temperature, so they made the temperature-compensated balance wheel obsolete.
159: 86: 58: 65: 39: 365: 265: 32: 370: 182:
in Physics for these discoveries, which shows how important these alloys were for scientific instruments.
72: 137: 249: 54: 248:. A major cause of inaccuracy in watches and clocks was that ordinary steels used in springs lost 245: 375: 319: 294: 223: 175: 343: 241: 237: 359: 253: 213: 79: 257: 198: 179: 141: 21: 256:
would oscillate more slowly back and forth, and the clock would lose time.
229: 219: 194: 130: 352:. Explanation of Elinvar use in pocket watch balance wheel hair springs. 269: 209: 190: 167: 122: 264:
for accurate timekeeping. Springs made of Elinvar, and other low
163: 133: 186: 171: 126: 15: 293:(2nd ed.). Longman Group Limited. p. 181. 46:. Unsourced material may be challenged and removed. 252:slightly as the temperature increased, so the 158:('invariable elasticity'). It was invented by 8: 153: 204:Other variations of the Elinvar alloy are 106:Learn how and when to remove this message 152:The name is a contraction of the French 281: 260:and precision watches required complex 262:temperature-compensated balance wheels 162:, a Swiss physicist who also invented 7: 185:Elinvar originally consisted of 52% 44:adding citations to reliable sources 318:. ASM international. p. 100. 236:The largest use of Elinvar was in 14: 289:Gray, H.J.; Isaacs, Alan (1975). 232:-based non-magnetic Elinvar alloy 316:Nickel, Cobalt, and Their Alloys 140:which does not change much with 20: 31:needs additional citations for 1: 291:A New Dictionary of Physics 201:, and corrosion resistant. 392: 178:. Guillaume won the 1920 160:Charles Édouard Guillaume 314:Davis, Joseph R (2000). 266:temperature coefficient 154: 222:- and chromium-based 155:Ă©lasticitĂ© invariable 138:modulus of elasticity 136:notable for having a 40:improve this article 344:"Perfect Timepiece" 166:, another alloy of 242:mechanical watches 348:Popular Mechanics 224:antiferromagnetic 176:thermal expansion 116: 115: 108: 90: 383: 351: 330: 329: 311: 305: 304: 286: 157: 111: 104: 100: 97: 91: 89: 48: 24: 16: 391: 390: 386: 385: 384: 382: 381: 380: 356: 355: 350:, December 1931 342: 339: 334: 333: 326: 313: 312: 308: 301: 288: 287: 283: 278: 268:alloys such as 238:balance springs 197:. It is almost 150: 112: 101: 95: 92: 49: 47: 37: 25: 12: 11: 5: 389: 387: 379: 378: 373: 368: 366:Ferrous alloys 358: 357: 354: 353: 338: 337:External links 335: 332: 331: 324: 306: 299: 280: 279: 277: 274: 234: 233: 227: 217: 174:with very low 149: 146: 114: 113: 28: 26: 19: 13: 10: 9: 6: 4: 3: 2: 388: 377: 374: 372: 371:Nickel alloys 369: 367: 364: 363: 361: 349: 345: 341: 340: 336: 327: 321: 317: 310: 307: 302: 296: 292: 285: 282: 275: 273: 271: 267: 263: 259: 255: 254:balance wheel 251: 247: 243: 239: 231: 228: 226:Elinvar alloy 225: 221: 218: 216:Elinvar alloy 215: 214:ferromagnetic 211: 207: 206: 205: 202: 200: 196: 192: 188: 183: 181: 177: 173: 169: 165: 161: 156: 147: 145: 143: 139: 135: 132: 128: 124: 120: 110: 107: 99: 96:December 2009 88: 85: 81: 78: 74: 71: 67: 64: 60: 57: â€“  56: 52: 51:Find sources: 45: 41: 35: 34: 29:This article 27: 23: 18: 17: 347: 315: 309: 290: 284: 258:Chronometers 246:chronometers 235: 203: 199:non-magnetic 184: 151: 118: 117: 102: 93: 83: 76: 69: 62: 50: 38:Please help 33:verification 30: 180:Nobel Prize 142:temperature 360:Categories 325:0871706857 300:0582322421 276:References 250:elasticity 208:Iron- and 193:, and 12% 66:newspapers 230:Palladium 220:Manganese 144:changes. 55:"Elinvar" 376:Horology 195:chromium 131:chromium 270:Nivarox 212:-based 119:Elinvar 80:scholar 322:  297:  210:cobalt 191:nickel 189:, 36% 168:nickel 123:nickel 82:  75:  68:  61:  53:  164:Invar 148:Metal 134:alloy 121:is a 87:JSTOR 73:books 320:ISBN 295:ISBN 244:and 240:for 187:iron 172:iron 170:and 127:iron 59:news 42:by 362:: 346:, 328:. 303:. 129:– 125:– 109:) 103:( 98:) 94:( 84:· 77:· 70:· 63:· 36:.

Index


verification
improve this article
adding citations to reliable sources
"Elinvar"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message
nickel
iron
chromium
alloy
modulus of elasticity
temperature
Charles Édouard Guillaume
Invar
nickel
iron
thermal expansion
Nobel Prize
iron
nickel
chromium
non-magnetic
cobalt
ferromagnetic
Manganese

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑