{"id":1946,"date":"2021-12-13T15:31:11","date_gmt":"2021-12-13T07:31:11","guid":{"rendered":"https:\/\/www.naxau.cn\/?post_type=docs&#038;p=1946"},"modified":"2023-12-14T10:13:10","modified_gmt":"2023-12-14T02:13:10","password":"","slug":"\u71b1\u81a8\u5f35\u4fc2\u6570-\u7dda\u81a8\u5f35\u4fc2\u6570-clti","status":"publish","type":"docs","link":"https:\/\/www.naxauie.com\/ja\/\u8af8\u6ce8\u610f\/\u71b1\u81a8\u5f35\u4fc2\u6570-\u7dda\u81a8\u5f35\u4fc2\u6570-clti\/","title":{"rendered":"\u70ed\u81a8\u80c0\u7cfb\u6570\/\u7ebf\u6027\u81a8\u80c0\u7cfb\u6570-clti"},"content":{"rendered":"<h2>\u4ec0\u4e48\u662f\u70ed\u81a8\u80c0\u7cfb\u6570\uff08\u7dda\u71b1\u81a8\u5f35\u4fc2\u6570-CLTE\uff09<\/h2>\n<p>\u70ed\u81a8\u80c0\u7cfb\u6570\/\u7ebf\u6027\u81a8\u80c0\u7cfb\u6570-clti\uff0c\u3002<span class=\"\">\u5728\u6e29\u5ea6\u5347\u9ad8\u7684\u5f71\u54cd\u4e0b\uff0c\u4efb\u4f55\u6750\u6599\u90fd\u4f1a\u81a8\u80c0\u3002<\/span><span class=\"\">\u8fd9\u53ef\u80fd\u5bfc\u81f4\u5c3a\u5bf8\u7684\u663e\u8457\u53d8\u5316\u3001\u96f6\u4ef6\u7fd8\u66f2\u6216\u5185\u5e94\u529b\u3002<\/span><\/p>\n<div class=\"trans-right\">\n<div class=\"output-wrap small-font\" data-domain-value=\"common\">\n<div class=\"output-mod ordinary-wrap\">\n<div class=\"output-bd\" dir=\"ltr\">\n<p class=\"ordinary-output target-output clearfix\"><span class=\"\">\u7ebf\u6027\u70ed\u81a8\u80c0\u7cfb\u6570\uff08CLTE\u901a\u5e38\u88ab\u79f0\u4e3a \"\u03b1\"\uff09\u662f\u4e00\u79cd\u6750\u6599\u7279\u6027\uff0c\u5b83\u8868\u5f81\u4e86\u6750\u6599\u5728\u6e29\u5ea6\u5347\u9ad8\u5f71\u54cd\u4e0b\u7684\u81a8\u80c0\u80fd\u529b\u3002<\/span><span class=\"\">\u6750\u6599\u7684\u7ebf\u6027\u7cfb\u6570'CLTE\u6216\u03b1'\u8ba1\u7b97\u5982\u4e0b\uff1a\u3002<\/span><\/p>\n<p><b>\u03b1 = \u0394L \/ (L<sub>0<\/sub> * \u0394T)<\/b><\/p>\n<p>\u5176\u4e2d<\/p>\n<ul>\n<li>\u03b1\u662f\u6bcf\u6444\u6c0f\u5ea6\u7684\u7ebf\u6027\u70ed\u81a8\u80c0\u7cfb\u6570<\/li>\n<li>\u03b4l\u662f\u7531\u4e8e\u52a0\u70ed\u6216\u51b7\u5374\u5f15\u8d77\u7684\u8bd5\u6837\u957f\u5ea6\u53d8\u5316<\/li>\n<li>L<sub>0<\/sub>\u662f\u5ba4\u6e29\u4e0b\u8bd5\u6837\u7684\u539f\u59cb\u957f\u5ea6<\/li>\n<li>\u03b4t\u662f\u8bd5\u9a8c\u8fc7\u7a0b\u4e2d\u7684\u6e29\u5ea6\u53d8\u5316\uff0c\u00b0c<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0c\u03b1\u662f\u901a\u8fc7\u5355\u4f4d\u957f\u5ea6\u7684\u7ebf\u6027\u81a8\u80c0\u9664\u4ee5\u6e29\u5ea6\u53d8\u5316\u5f97\u5230\u7684\u3002\u6807\u6ce8\u5e73\u5747\u70ed\u81a8\u80c0\u7cfb\u6570\u65f6\uff0c\u5fc5\u987b\u6307\u5b9a\u6e29\u5ea6\u8303\u56f4\u3002<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h2>\u5e38\u89c1\u6750\u6599\u7684\u70ed\u81a8\u80c0\u7cfb\u6570\u8868<\/h2>\n<table style=\"text-align: center;\" border=\"1\" width=\"80%\" cellspacing=\"0\" cellpadding=\"1\">\n<thead>\n<tr style=\"background-color: #e3e3e3;\">\n<th height=\"50\">\u71b1\u81a8\u5f35\u4fc2\u6570\uff1a<\/th>\n<th>\u71b1\u81a8\u5f35 (10<sup>-6 <\/sup>m\/(m \u00b0C)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30a2\u30eb\u30df\u30ca<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30eb\u30df\u30cb\u30a6\u30e0<\/td>\n<td>13.1<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30f3\u30c1\u30e2\u30f3<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u30d2\u7d20<\/td>\n<td>2.6<\/td>\n<\/tr>\n<tr>\n<td>\u30d0\u30ea\u30a6\u30e0<\/td>\n<td>11.4<\/td>\n<\/tr>\n<tr>\n<td>\u30d9\u30ea\u30ea\u30a6\u30e0<\/td>\n<td>6.7<\/td>\n<\/tr>\n<tr>\n<td>\u30d9\u30ea\u30ea\u30a6\u30e0\u9285<\/td>\n<td>9.3<\/td>\n<\/tr>\n<tr>\n<td>\u30d3\u30b9\u30de\u30b9<\/td>\n<td>7.2<\/td>\n<\/tr>\n<tr>\n<td>\u771f\u936e<\/td>\n<td>10.4<\/td>\n<\/tr>\n<tr>\n<td>\u30d6\u30e9\u30b9\u3001\u30a2\u30c9\u30df\u30e9\u30eb\u30c6\u30a3<\/td>\n<td>11.2<\/td>\n<\/tr>\n<tr>\n<td>\u771f\u936e\u3001\u9ec4\u8272<\/td>\n<td>11.3<\/td>\n<\/tr>\n<tr>\n<td>\u30d6\u30ed\u30f3\u30ba<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>\u30d6\u30ed\u30f3\u30ba\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0<\/td>\n<td>9<\/td>\n<\/tr>\n<tr>\n<td>\u30ab\u30c9\u30df\u30a6\u30e0<\/td>\n<td>16.8<\/td>\n<\/tr>\n<tr>\n<td>\u30ab\u30eb\u30b7\u30a6\u30e0<\/td>\n<td>12.4<\/td>\n<\/tr>\n<tr>\n<td>\u91d1\u521a\u77f3 \u30ab\u30fc\u30dc\u30f3 - \u30c0\u30a4\u30e4\u30e2\u30f3\u30c9<\/td>\n<td>0.67<\/td>\n<\/tr>\n<tr>\n<td>\u30bb\u30ea\u30a6\u30e0<\/td>\n<td>2.9<\/td>\n<\/tr>\n<tr>\n<td>\u30af\u30ed\u30e0<\/td>\n<td>3.3<\/td>\n<\/tr>\n<tr>\n<td>\u30b3\u30d0\u30eb\u30c8<\/td>\n<td>6.7<\/td>\n<\/tr>\n<tr>\n<td>\u94dc\u9285<\/td>\n<td>9.8<\/td>\n<\/tr>\n<tr>\n<td>\u9285\u3001\u30d9\u30ea\u30ea\u30a6\u30e0 25<\/td>\n<td>9.9<\/td>\n<\/tr>\n<tr>\n<td>\u521a\u7389\uff0c\u70e7\u7ed3\u30b3\u30e9\u30f3\u30c0\u30e0\uff0c\u713c\u7d50<\/td>\n<td>3.6<\/td>\n<\/tr>\n<tr>\n<td>\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9<\/td>\n<td>0.6<\/td>\n<\/tr>\n<tr>\n<td>\u30b8\u30b9\u30d7\u30ed\u30b7\u30a6\u30e0<\/td>\n<td>5.5<\/td>\n<\/tr>\n<tr>\n<td>\u30a8\u30eb\u30d3\u30a6\u30e0<\/td>\n<td>6.8<\/td>\n<\/tr>\n<tr>\n<td>\u30e6\u30fc\u30ed\u30d4\u30a6\u30e0<\/td>\n<td>19.4<\/td>\n<\/tr>\n<tr>\n<td>\u30ac\u30c9\u30ea\u30cb\u30a6\u30e0<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u30b2\u30eb\u30de\u30cb\u30a6\u30e0<\/td>\n<td>3.4<\/td>\n<\/tr>\n<tr>\n<td>\u30ac\u30e9\u30b9\u3001\u30cf\u30fc\u30c9<\/td>\n<td>3.3<\/td>\n<\/tr>\n<tr>\n<td>\u91d1<\/td>\n<td>7.9<\/td>\n<\/tr>\n<tr>\n<td>\u77f3\u58a8\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8<\/td>\n<td>4.4<\/td>\n<\/tr>\n<tr>\n<td>\u30cf\u30d5\u30cb\u30a6\u30e0<\/td>\n<td>3.3<\/td>\n<\/tr>\n<tr>\n<td>\u786c\u8cea\u5408\u91d1K20<\/td>\n<td>3.3<\/td>\n<\/tr>\n<tr>\n<td>\u30cf\u30b9\u30c6\u30ed\u30a4C<\/td>\n<td>5.3<\/td>\n<\/tr>\n<tr>\n<td>\u30db\u30eb\u30df\u30a6\u30e0<\/td>\n<td>6.2<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30a4\u30b9<\/td>\n<td>28.3<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30f3\u30b3\u30ed\u30a4<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30f3\u30b3\u30cd\u30eb<\/td>\n<td>6.4<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30f3\u30b8\u30a6\u30e0<\/td>\n<td>18.3<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30f3\u30d0\u30fc<\/td>\n<td>0.8<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30ea\u30b8\u30a6\u30e0<\/td>\n<td>3.3<\/td>\n<\/tr>\n<tr>\n<td>\u94c1\u9244<\/td>\n<td>6.8<\/td>\n<\/tr>\n<tr>\n<td>\u92f3\u9244<\/td>\n<td>5.9<\/td>\n<\/tr>\n<tr>\n<td>\u953b\u9020\u94c1\u9244\u3001\u935b\u9020<\/td>\n<td>6.3<\/td>\n<\/tr>\n<tr>\n<td>\u30e9\u30f3\u30bf\u30f3<\/td>\n<td>6.7<\/td>\n<\/tr>\n<tr>\n<td>\u30ea\u30fc\u30c9<\/td>\n<td>15.1<\/td>\n<\/tr>\n<tr>\n<td>\u30e9\u30a4\u30e0\u30b9\u30c8\u30fc\u30f3<\/td>\n<td>4.4<\/td>\n<\/tr>\n<tr>\n<td>\u30ea\u30c1\u30a6\u30e0<\/td>\n<td>25.6<\/td>\n<\/tr>\n<tr>\n<td>\u30eb\u30c6\u30c1\u30a6\u30e0<\/td>\n<td>5.5<\/td>\n<\/tr>\n<tr>\n<td>\u30de\u30b0\u30cd\u30b7\u30a6\u30e0<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>\u30de\u30f3\u30ac\u30f3<\/td>\n<td>12<\/td>\n<\/tr>\n<tr>\n<td>\u30de\u30f3\u30ac\u30f3\u9752\u9285<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>\u5927\u7406\u77f3<\/td>\n<td>3.1 &#8211; 7.9<\/td>\n<\/tr>\n<tr>\n<td>\u77f3\u5de5<\/td>\n<td>2.6 &#8211; 5.0<\/td>\n<\/tr>\n<tr>\n<td>\u30de\u30a4\u30ab<\/td>\n<td>1.7<\/td>\n<\/tr>\n<tr>\n<td>\u30e2\u30ea\u30d6\u30c7\u30f3<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>\u30cd\u30aa\u30b8\u30e0<\/td>\n<td>5.3<\/td>\n<\/tr>\n<tr>\n<td>\u30cb\u30c3\u30b1\u30eb<\/td>\n<td>7.2<\/td>\n<\/tr>\n<tr>\n<td>\u30cb\u30c3\u30b1\u30eb\u935b\u9020<\/td>\n<td>7.4<\/td>\n<\/tr>\n<tr>\n<td>\u30cb\u30aa\u30d6\uff08\u30b3\u30ed\u30f3\u30d3\u30a6\u30e0\uff09<\/td>\n<td>3.9<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30b9\u30df\u30a6\u30e0<\/td>\n<td>2.8<\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30e9\u30b8\u30a6\u30e0<\/td>\n<td>6.6<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30e9\u30c1\u30ca<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30eb\u30c8\u30cb\u30a6\u30e0<\/td>\n<td>19.84<\/td>\n<\/tr>\n<tr>\n<td>\u30ab\u30ea\u30a6\u30e0<\/td>\n<td>46<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30e9\u30bb\u30aa\u30b8\u30e0<\/td>\n<td>3.7<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30ed\u30e1\u30c1\u30a6\u30e0<\/td>\n<td>6.1<\/td>\n<\/tr>\n<tr>\n<td>\u30af\u30a9\u30fc\u30c4<\/td>\n<td>0.43 &#8211; 0.79<\/td>\n<\/tr>\n<tr>\n<td>\u30ec\u30c3\u30c9\u30fb\u30d6\u30e9\u30b9<\/td>\n<td>10.4<\/td>\n<\/tr>\n<tr>\n<td>\u30ec\u30cb\u30a6\u30e0<\/td>\n<td>3.7<\/td>\n<\/tr>\n<tr>\n<td>\u30ed\u30b8\u30a6\u30e0<\/td>\n<td>4.4<\/td>\n<\/tr>\n<tr>\n<td>\u30e9\u30d0\u30fc\u3001\u30cf\u30fc\u30c9<\/td>\n<td>42.8<\/td>\n<\/tr>\n<tr>\n<td>\u30eb\u30c6\u30cb\u30a6\u30e0<\/td>\n<td>5.1<\/td>\n<\/tr>\n<tr>\n<td>\u30b5\u30de\u30ea\u30a6\u30e0<\/td>\n<td>7.1<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30ab\u30f3\u30b8\u30a6\u30e0<\/td>\n<td>5.7<\/td>\n<\/tr>\n<tr>\n<td>\u30bb\u30ec\u30f3<\/td>\n<td>2.1<\/td>\n<\/tr>\n<tr>\n<td>\u73ea\u30b7\u30ea\u30b3\u30f3<\/td>\n<td>2.8<\/td>\n<\/tr>\n<tr>\n<td>\u94f6\u9280<\/td>\n<td>11<\/td>\n<\/tr>\n<tr>\n<td>\u30ca\u30c8\u30ea\u30a6\u30e0<\/td>\n<td>39<\/td>\n<\/tr>\n<tr>\n<td>\u306f\u3093\u3060 50 - 50<\/td>\n<td>13.4<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30c1\u30fc\u30eb<\/td>\n<td>7.3<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc (304)<\/td>\n<td>9.6<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc (310)<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc (316)<\/td>\n<td>8.9<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a7\u30e9\u30a4\u30c8\u7cfb\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc (410)<\/td>\n<td>5.5<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30c8\u30ed\u30f3\u30c1\u30a6\u30e0<\/td>\n<td>12.5<\/td>\n<\/tr>\n<tr>\n<td>\u30bf\u30f3\u30bf\u30eb<\/td>\n<td>3.6<\/td>\n<\/tr>\n<tr>\n<td>\u30c6\u30eb\u30eb<\/td>\n<td>20.5<\/td>\n<\/tr>\n<tr>\n<td>\u30c6\u30eb\u30d3\u30a6\u30e0<\/td>\n<td>5.7<\/td>\n<\/tr>\n<tr>\n<td>\u30c6\u30eb\u30cd<\/td>\n<td>6.5<\/td>\n<\/tr>\n<tr>\n<td>\u30bf\u30ea\u30a6\u30e0<\/td>\n<td>16.6<\/td>\n<\/tr>\n<tr>\n<td>\u30c8\u30ea\u30a6\u30e0<\/td>\n<td>6.7<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30ea\u30a6\u30e0<\/td>\n<td>7.4<\/td>\n<\/tr>\n<tr>\n<td>\u932b<\/td>\n<td>12.8<\/td>\n<\/tr>\n<tr>\n<td>\u5546\u4e1a\u7eaf\u949b\u30c1\u30bf\u30f3\u5546\u696d\u7d14\u30c1\u30bf\u30f3<\/td>\n<td>8.6<\/td>\n<\/tr>\n<tr>\n<td>\u30c1\u30bf\u30f3\u5408\u91d1 Ti - 5Al - 2.5Sn<\/td>\n<td>9.4<\/td>\n<\/tr>\n<tr>\n<td>\u30e2\u30ea\u30d6\u30c7\u30f3<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3<\/td>\n<td>2.5<\/td>\n<\/tr>\n<tr>\n<td>\u30a6\u30e9\u30f3<\/td>\n<td>7.4<\/td>\n<\/tr>\n<tr>\n<td>\u30d0\u30ca\u30b8\u30a6\u30e0<\/td>\n<td>4.4<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30c3\u30c6\u30eb\u30d3\u30a6\u30e0<\/td>\n<td>14.6<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30c3\u30c8\u30ea\u30a6\u30e0<\/td>\n<td>5.9<\/td>\n<\/tr>\n<tr>\n<td>\u4e9c\u925b<\/td>\n<td>19<\/td>\n<\/tr>\n<tr>\n<td>\u30b8\u30eb\u30b3\u30cb\u30a6\u30e0<\/td>\n<td>3.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662f\u70ed\u81a8\u80c0\u7cfb\u6570\uff08Coefficient of Linear Thermal Expansion -CLTE\uff09 \u70ed\u81a8\u80c0\u7cfb\u6570\/\u7ebf\u6027\u81a8\u80c0\u7cfb\u6570-CLTI\uff0c\u5728\u6e29\u5ea6\u5347\u9ad8\u7684\u5f71\u54cd\u4e0b\uff0c\u4efb\u4f55\u6750\u6599\u90fd\u4f1a\u81a8\u80c0\u3002\u8fd9\u53ef\u80fd\u5bfc\u81f4\u5c3a\u5bf8\u7684\u663e\u8457\u53d8\u5316\u3001\u96f6\u4ef6\u7fd8\u66f2\u6216\u5185\u5e94\u529b\u3002 \u7ebf\u6027\u70ed\u81a8\u80c0\u7cfb\u6570\uff08CLTE\u901a\u5e38\u88ab\u79f0\u4e3a\u201c\u03b1\u201d\uff09\u662f\u4e00\u79cd\u6750\u6599\u7279\u6027\uff0c\u5b83\u8868\u5f81\u4e86\u6750\u6599\u5728\u6e29\u5ea6\u5347\u9ad8\u5f71\u54cd\u4e0b\u7684\u81a8\u80c0\u80fd\u529b\u3002\u6750\u6599\u7684\u7ebf\u6027\u7cfb\u6570\u2018CLTE\u6216\u03b1\u2019\u8ba1\u7b97\u5982\u4e0b\uff1a \u03b1 = \u0394L \/ (L0 * \u0394T) \u5176\u4e2d\uff1a \u03b1\u662f\u6bcf\u6444\u6c0f\u5ea6\u7684\u7ebf\u6027\u70ed\u81a8\u80c0\u7cfb\u6570 \u0394L\u662f\u7531\u4e8e\u52a0\u70ed\u6216\u51b7\u5374\u5f15\u8d77\u7684\u8bd5\u6837\u957f\u5ea6\u53d8\u5316 L0\u662f\u5ba4\u6e29\u4e0b\u8bd5\u6837\u7684\u539f\u59cb\u957f\u5ea6 \u0394T\u662f\u8bd5\u9a8c\u8fc7\u7a0b\u4e2d\u7684\u6e29\u5ea6\u53d8\u5316\uff0c\u00b0C \u56e0\u6b64\uff0c\u03b1\u662f\u901a\u8fc7\u5355\u4f4d\u957f\u5ea6\u7684\u7ebf\u6027\u81a8\u80c0\u9664\u4ee5\u6e29\u5ea6\u53d8\u5316\u5f97\u5230\u7684\u3002\u6807\u6ce8\u5e73\u5747\u70ed\u81a8\u80c0\u7cfb\u6570\u65f6\uff0c\u5fc5\u987b\u6307\u5b9a\u6e29\u5ea6\u8303\u56f4\u3002 &nbsp; \u5e38\u89c1\u6750\u6599\u7684\u70ed\u81a8\u80c0\u7cfb\u6570\u8868 Thermal Expansion Coefficient of: Thermal Expansion (10-6 m\/(m \u00b0C)\uff09 \u6c27\u5316\u94dd Alumina 3 \u94dd Aluminum 13.1 Antimony 5 Arsenic 2.6 Barium 11.4 Beryllium 6.7 \u94cd\u94dc Beryllium Copper 9.3 Bismuth 7.2 Brass 10.4 Brass, Admiralty 11.2 Brass, Yellow 11.3 Bronze 10 Bronze, Aluminum 9 Cadmium 16.8 Calcium 12.4 \u91d1\u521a\u77f3 Carbon &#8211; diamond 0.67 Cerium 2.9 \u94ec Chromium 3.3 Cobalt 6.7 \u94dc Copper 9.8 Copper, Beryllium 25 9.9 \u521a\u7389\uff0c\u70e7\u7ed3 Corundum, sintered 3.6 Diamond 0.6 Dysprosium 5.5 Erbium 6.8 Europium 19.4 Gadolinium 5 Germanium 3.4 Glass, hard 3.3 \u91d1 Gold 7.9 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