25\ub144 \ub118\uac8c \uc138\ub77c\ubbf9 \uc6d0\uc790\uc7ac\ub97c \ub2e4\ub8e8\uc5b4 \uc628 \ub05d\uc5d0, \uc800\ub294 \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc744 \uadf8 \uc5b4\ub5a4 \ub2e8\uc77c \uc131\ubd84\ubcf4\ub2e4\ub3c4 \ub354 \ub192\uc774 \ud3c9\uac00\ud558\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc9c0\ub974\ucf54\ub2c8\uc544\ub098 \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc\ucc98\ub7fc \uc8fc\ubaa9\uc744 \ubc1b\uc9c0\ub294 \uc54a\uc9c0\ub9cc, \uc218\ub9ce\uc740 \uacf5\uc7a5\uc5d0\uc11c \ub2e4\ub978 \uc7ac\ub8cc\ub4e4\uc774 \uc81c \uc5ed\ud560\uc744 \ub2e4\ud558\uc9c0 \ubabb\ud560 \ub54c \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc774 \uc77c\uad00\ub41c \uacb0\uacfc\ub97c \ubcf4\uc5ec\uc8fc\ub294 \uac83\uc744 \uc9c1\uc811 \ubaa9\uaca9\ud574 \uc654\uc2b5\ub2c8\ub2e4. \uace0\uc54c\ub8e8\ubbf8\ub098 \ub0b4\ud654\ubb3c, \ubd84\uc1c4 \ub9e4\uccb4, \uae30\uc220\uc6a9 \uc138\ub77c\ubbf9, \ub610\ub294 \uae30\ub2a5\uc131 \ucda9\uc804\uc7ac\ub85c \uc0ac\uc6a9\ub418\ub4e0, \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \uc5ec\uc804\ud788 \uac00\uc7a5 \uc2e4\uc6a9\uc801\uc774\uace0 \ub2e4\uc6a9\ub3c4\ub85c \ud65c\uc6a9 \uac00\ub2a5\ud55c \uc120\ud0dd\uc9c0 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \ud575\uc2ec\uc740 \uc5b4\ub5a4 \ub4f1\uae09\uc744 \uc120\ud0dd\ud574\uc57c \ud558\ub294\uc9c0, \uadf8\ub9ac\uace0 \ub2f9\uba74\ud55c \uc791\uc5c5\uc5d0 \ub9de\uac8c \uc774\ub97c \uc62c\ubc14\ub974\uac8c \ucde8\uae09\ud558\ub294 \ubc29\ubc95\uc744 \uc774\ud574\ud558\ub294 \ub370 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \ubcf8\uc9c8\uc801\uc73c\ub85c \uc0b0\ud654\uc54c\ub8e8\ubbf8\ub284(Al\u2082O\u2083)\uc785\ub2c8\ub2e4. \uc2dc\uc911\uc5d0 \uc720\ud1b5\ub418\ub294 \ub300\ubd80\ubd84\uc758 \uc81c\ud488\uc740 \ubc14\uc774\uc5d8 \uacf5\uc815\uc744 \ud1b5\ud574 \uc0dd\uc0b0\ub418\ub294\ub370, \uc774 \uacf5\uc815\uc5d0\uc11c\ub294 \ubcf4\ud06c\uc0ac\uc774\ud2b8 \uad11\uc11d\uc744 \uac00\uc131\uc18c\ub2e4\ub85c \uc18c\ud654\uc2dc\ucf1c \uc218\uc0b0\ud654\uc54c\ub8e8\ubbf8\ub284\uc744 \uc0dd\uc131\ud55c \ub4a4, \uc774\ub97c \uace0\uc628\uc5d0\uc11c \uc18c\uc131\ud558\uc5ec \uc54c\ub8e8\ubbf8\ub098\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uc18c\uc131 \uc628\ub3c4\uc640 \uc2dc\uac04\uc740 \ucd5c\uc885 \ubd84\ub9d0\uc758 \uacb0\uc815 \uc0c1\uacfc \ubc18\uc751\uc131\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4. \uc800\uc628 \uc18c\uc131 \uc54c\ub8e8\ubbf8\ub098 \uc81c\ud488\uc740 \ubc18\uc751\uc131\uc774 \ub354 \ub192\uc740 \uacbd\ud5a5\uc774 \uc788\uc5b4, \uc801\uc815 \uc628\ub3c4\uc5d0\uc11c \uc6b0\uc218\ud55c \uc18c\uacb0\uc131\uc774 \uc694\uad6c\ub418\ub294 \uc138\ub77c\ubbf9 \ubd84\uc57c\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uace0\uc628 \uc18c\uc131 \uc81c\ud488\uc740 \ucd94\uac00 \uac00\uacf5\uc744 \uac70\uce58\uba74 \ud754\ud788 \u2018\ud310\uc0c1 \uc54c\ub8e8\ubbf8\ub098\u2019\ub77c\uace0 \ubd88\ub9ac\uba70, \ub0b4\ud654\ubb3c \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ud558\uae30\uc5d0 \ub354 \ub192\uc740 \ubc00\ub3c4\uc640 \uc548\uc815\uc131\uc744 \uc9c0\ub2d9\ub2c8\ub2e4. \uc21c\ub3c4 \uc218\uc900\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 99 %\uc5d0\uc11c 99.9 % \uc774\uc0c1\uc774\uba70, \ucd5c\uc885 \uc6a9\ub3c4\uc5d0 \ub530\ub77c \uc18c\ub2e4, \uc2e4\ub9ac\uce74, \uc0b0\ud654\ucca0\uc758 \ud568\ub7c9\uc774 \uc870\uc808\ub429\ub2c8\ub2e4.<\/p>\n
\uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc774 \uac00\uce58 \uc788\ub294 \uc774\uc720\ub294 \ub2e4\uc591\ud55c \ud2b9\uc131\uc774 \uacb0\ud569\ub418\uc5b4 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ubaa8\uc2a4 \uacbd\ub3c4\uac00 9\uc5d0 \ub2ec\ud560 \uc815\ub3c4\ub85c \ub9e4\uc6b0 \ub2e8\ub2e8\ud558\uc5ec, \uc624\ub7ab\ub3d9\uc548 \uc5f0\ub9c8\uc7ac \ubc0f \uc5f0\uc0ad \ub9e4\uccb4\ub85c \uc0ac\uc6a9\ub418\uc5b4 \uc628 \uc774\uc720\ub97c \uc124\uba85\ud574 \uc90d\ub2c8\ub2e4. \ub610\ud55c \uc5f4\uc801 \uc548\uc815\uc131\uc774 \ub6f0\uc5b4\ub098\uba70, 1500 \u00b0C\ub97c \ud6e8\uc52c \ub118\ub294 \uc628\ub3c4\uc5d0\uc11c\ub3c4 \ud070 \uc5f4\ud654 \ud604\uc0c1 \uc5c6\uc774 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud654\ud559\uc801 \ud2b9\uc131\uc0c1 \uc801\ub2f9\ud55c \uc628\ub3c4\uc5d0\uc11c\ub294 \ub300\ubd80\ubd84\uc758 \uc0b0\uacfc \uc54c\uce7c\ub9ac\uc5d0 \ub0b4\uc131\uc744 \ubcf4\uc774\uba70, \uc0b0\ud654 \uc800\ud56d\uc131\ub3c4 \uc6b0\uc218\ud569\ub2c8\ub2e4. \uc81c\uc870 \uacfc\uc815\uc5d0\uc11c \uc785\uc790 \ud06c\uae30 \ubd84\ud3ec\uc640 \ud615\ud0dc\ub97c \uc870\uc808\ud560 \uc218 \uc788\ub294\ub370, \uc774\ub7ec\ud55c \uc694\uc18c\ub4e4\uc740 \uc138\ub77c\ubbf9 \uccb4\uc758 \ucda9\uc9c4 \ubc00\ub3c4, \uc18c\uacb0 \uac70\ub3d9 \ubc0f \ucd5c\uc885 \uac15\ub3c4\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce58\uae30 \ub54c\ubb38\uc5d0 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n
\ub0b4\ud654\ubb3c \ubd84\uc57c\uc5d0\uc11c \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \uc218\ub9ce\uc740 \uace0\uc131\ub2a5 \uc81c\ud488\uc758 \ud575\uc2ec \uc18c\uc7ac\uc785\ub2c8\ub2e4. \uc800\ub294 \uc5f4\ucda9\uaca9 \uc800\ud56d\uc131\uacfc \uace0\uc628 \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825\uc774 \uc694\uad6c\ub418\ub294 \uc8fc\uc785\uc7ac, \ubcbd\ub3cc, \uac00\ub9c8 \ub0b4 \ubd80\uc7ac \ub4f1\uc5d0 \uc774 \uc18c\uc7ac\ub97c \ud3ed\ub113\uac8c \uc0ac\uc6a9\ud574 \uc654\uc2b5\ub2c8\ub2e4. \ud55c \uc81c\ucca0\uc18c \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c, \uce90\uc2a4\ud130\ube14 \ubc30\ud569\uc5d0 \uace0\uc21c\ub3c4 \ubc18\uc751\uc131 \uc54c\ub8e8\ubbf8\ub098\ub97c \ub3c4\uc785\ud55c \uacb0\uacfc, \ub798\ub4e4 \ub77c\uc774\ub2dd\uc758 \uace0\uc628 \uac15\ub3c4\uac00 \ud5a5\uc0c1\ub418\uace0 \ub9c8\ubaa8\uc728\uc774 \uac10\uc18c\ud588\uc2b5\ub2c8\ub2e4. \uc785\uc790 \ud06c\uae30\uac00 \ub354 \ubbf8\uc138\ud574\uc9d0\uc5d0 \ub530\ub77c \uc2dc\uacf5 \uc2dc \uc720\ub3d9\uc131\uc774 \uac1c\uc120\ub418\uc5c8\uc744 \ubfd0\ub9cc \uc544\ub2c8\ub77c, \uc2ac\ub798\uadf8 \uc800\ud56d\uc131\uc5d0 \ud544\uc694\ud55c \ubc00\ub3c4\ub3c4 \ud655\ubcf4\ud560 \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc5f0\ub9c8 \ub9e4\uccb4 \ubc0f \uc5f0\ub9c8\uc7ac\uc758 \uacbd\uc6b0, \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \uace0\uc54c\ub8e8\ubbf8\ub098 \ubcfc\uacfc \uc785\uc790\ub97c \uc0dd\uc0b0\ud558\uae30 \uc704\ud55c \ucd9c\ubc1c\uc810\uc785\ub2c8\ub2e4. \uc815\ubc00\ud558\uac8c \uc81c\uc5b4\ub41c \uc785\uc790 \ud06c\uae30\uc640 \ub0ae\uc740 \ubd88\uc21c\ubb3c \ud568\ub7c9\uc740 \ub9c8\ubaa8 \uc18d\ub3c4\uac00 \ub290\ub9ac\uace0, \ubd84\uc1c4 \ub300\uc0c1 \uc7ac\ub8cc\uc5d0 \uc720\uc785\ub418\ub294 \uc624\uc5fc\uc744 \ucd5c\uc18c\ud654\ud558\ub294 \ubd84\uc1c4 \ub9e4\uccb4\ub97c \ub9cc\ub4dc\ub294 \ub370 \uae30\uc5ec\ud569\ub2c8\ub2e4. \uc138\ub77c\ubbf9 \ud0c0\uc77c \ubc0f \uc704\uc0dd\uc6a9\ud488 \uc0dd\uc0b0 \uacfc\uc815\uc5d0\uc11c \uc54c\ub8e8\ubbf8\ub098\ub97c \ubcf8\uccb4 \ubc0f \uc720\uc57d \ubc30\ud569\uc5d0 \ucca8\uac00\ud558\uc5ec \uc18c\uc131 \uac15\ub3c4\ub97c \ub192\uc774\uace0 \ubc31\uc0c9\ub3c4\ub97c \uac1c\uc120\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc18c\ub7c9\ub9cc \ucca8\uac00\ud574\ub3c4 \uc18c\uc131 \uc628\ub3c4\ub97c \ub192\uc774\uc9c0 \uc54a\uace0\ub3c4 \ud30c\ub2e8 \ud0c4\uc131 \uacc4\uc218\ub97c \ud604\uc800\ud788 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uae30\uc220\uc6a9 \uc138\ub77c\ubbf9\ub3c4 \ub610 \ub2e4\ub978 \uc8fc\uc694 \uc6a9\ub3c4\uc785\ub2c8\ub2e4. \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \uc555\ucd95 \uc131\ud615 \ub610\ub294 \uc0ac\ucd9c \uc131\ud615\uc744 \ud1b5\ud574 \uc808\uc5f0\uccb4, \ub0b4\ub9c8\ubaa8 \ubd80\ud488 \ubc0f \uc804\uc790 \uae30\ud310\uc73c\ub85c \uc81c\uc791\ub429\ub2c8\ub2e4. \uc218\ucd95\uc744 \uc81c\uc5b4\ud558\uba74\uc11c \ub192\uc740 \uc18c\uc131 \ubc00\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\ub294 \ud2b9\uc131 \ub355\ubd84\uc5d0 \uc815\ubc00 \ubd80\ud488\uc5d0 \uc2e0\ub8b0\uc131 \uc788\uac8c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc5f0\ub9c8 \ubd84\uc57c\uc5d0\uc11c\ub294 \uc18c\uc131 \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc774 \uc5ec\uc804\ud788 \uae08\uc18d, \uc720\ub9ac, \uc11d\uc7ac\uc758 \ub9c8\uac10 \ucc98\ub9ac\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\uace0 \uc788\ub294\ub370, \uc774\ub294 \uc801\uc808\ud55c \uc785\uc790 \ud06c\uae30\ub97c \uc120\ud0dd\ud560 \uacbd\uc6b0 \uae4a\uc740 \ud760\uc9d1\uc744 \ub0a8\uae30\uc9c0 \uc54a\uc73c\uba74\uc11c\ub3c4 \ud6a8\uc728\uc801\uc73c\ub85c \uc808\uc0ad\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n
\uc2e4\uc81c \ud50c\ub79c\ud2b8 \uc6b4\uc601 \uacbd\ud5d8\uc744 \ud1b5\ud574 \uc5bb\uc740 \uc2e4\uc6a9\uc801\uc778 \uace0\ub824 \uc0ac\ud56d\ub4e4\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc785\uc790 \ud06c\uae30\ub294 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc785\uc790\uac00 \uad75\uc740 \ub4f1\uae09\uc740 \uac74\uc2dd \uc555\ucd95 \uc2dc \uc720\ub3d9\uc131\uc774 \ub354 \uc88b\uc9c0\ub9cc, \ub354 \ub192\uc740 \uc18c\uacb0 \uc628\ub3c4\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc785\uc790\uac00 \ubbf8\uc138\ud558\uace0 \ubc18\uc751\uc131\uc774 \ub192\uc740 \ub4f1\uae09\uc740 \ub354 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c \uc18c\uacb0\ub418\uc9c0\ub9cc, \ucde8\uae09 \uc2dc \ubd84\uc9c4 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\uba70, \uac74\uc870 \uc911 \uade0\uc5f4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ubc14\uc778\ub354\ub97c \uc2e0\uc911\ud558\uac8c \uc120\ud0dd\ud574\uc57c \ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc18c\ub2e4 \ud568\ub7c9 \ub610\ud55c \uc911\uc694\ud55c \uc0ac\uc591 \uc911 \ud558\ub098\ub85c, \uadf9\uc18c\ub7c9\uc774\ub77c\ub3c4 \uc804\uae30\uc801 \ud2b9\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\uac70\ub098 \uc77c\ubd80 \ub0b4\ud654\ubb3c \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc6d0\uce58 \uc54a\ub294 \uc720\ub9ac \ud615\uc131\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc744 \ucde8\uae09\ud560 \ub54c\ub294 \ubd84\uc9c4 \uad00\ub9ac\uc5d0 \uc8fc\uc758\ub97c \uae30\uc6b8\uc5ec\uc57c \ud569\ub2c8\ub2e4. \ub2e4\ub978 \uc77c\ubd80 \uc138\ub77c\ubbf9 \uc12c\uc720\uc640 \uac19\uc774 \uc720\ud574 \ubb3c\uc9c8\ub85c \ubd84\ub958\ub418\uc9c0\ub294 \uc54a\uc9c0\ub9cc, \uc801\uc808\ud55c \ud658\uae30 \ubc0f \uac1c\uc778 \ubcf4\ud638 \uc7a5\ube44\ub97c \ucc29\uc6a9\ud558\uc5ec \ubbf8\uc138 \ubd84\uc9c4\uc744 \uc7a5\uc2dc\uac04 \ud761\uc785\ud558\uc9c0 \uc54a\ub3c4\ub85d \ud574\uc57c \ud569\ub2c8\ub2e4. \uc7ac\ub8cc\ub97c \uac74\uc870\ud55c \uc0c1\ud0dc\ub85c \uc720\uc9c0\ud558\ub294 \ud55c \ubcf4\uad00\uc740 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\ub9cc, \uc77c\ubd80 \ub4f1\uae09\uc758 \uacbd\uc6b0 \uc218\ubd84\uc744 \ud761\uc218\ud558\uba74 \uc720\ub3d9\uc131\uacfc \ubc18\uc751\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\ube44\uc6a9\uc740 \ud56d\uc0c1 \ub17c\uc758\uc758 \ud55c \ucd95\uc744 \ucc28\uc9c0\ud569\ub2c8\ub2e4. \uc21c\ub3c4\uac00 \ub192\uace0 \uc785\uc790\uac00 \ub354 \ubbf8\uc138\ud55c \ubc18\uc751\uc131 \uc54c\ub8e8\ubbf8\ub098\uc77c\uc218\ub85d \uac00\uaca9\uc774 \ube44\uc2f8\uae30 \ub54c\ubb38\uc5d0, \uc774\ub97c \ucc44\ud0dd\ud558\ub294 \uadfc\uac70\ub294 \ub300\uac1c \uc131\ub2a5 \ud5a5\uc0c1, \uc218\uba85 \uc5f0\uc7a5, \ub610\ub294 \ud6c4\uc18d \uacf5\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c \uac10\uc18c\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4. \ub9ce\uc740 \uacbd\uc6b0, \uc785\uc790 \ud06c\uae30 \ubd84\ud3ec\uac00 \uc798 \uc81c\uc5b4\ub41c \uc911\uae09 \uc218\uc900\uc758 99 % \uc54c\ub8e8\ubbf8\ub098\uac00 \uc131\ub2a5\uacfc \uacbd\uc81c\uc131 \uc0ac\uc774\uc5d0\uc11c \ucd5c\uc801\uc758 \uade0\ud615\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n
\ucd5c\uadfc \uba87 \ub144\uac04\uc758 \ucd94\uc138\ub85c\ub294 \uc804\uc790 \ubc0f \ucd09\ub9e4 \ubd84\uc57c\uc5d0\uc11c \ubbf8\ub7c9 \ubd88\uc21c\ubb3c\uc5d0 \ub300\ud55c \uaddc\uaca9\uc774 \ub354\uc6b1 \uc5c4\uaca9\ud574\uc9c0\uace0 \uc788\ub294 \uc810\uacfc, \uc54c\ub8e8\ubbf8\ub098 \ud568\uc720 \ud3d0\uae30\ubb3c\uc758 \uc9c0\uc18d \uac00\ub2a5\ud55c \uc870\ub2ec \ubc0f \uc7ac\ud65c\uc6a9\uc5d0 \ub300\ud55c \uad00\uc2ec\uc774 \ub192\uc544\uc9c0\uace0 \uc788\ub294 \uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc77c\ubd80 \uc0dd\uc0b0\uc5c5\uccb4\ub4e4\uc740 \uc0dd\uc0b0 \uacfc\uc815\uc758 \ubcc0\ub3d9\uc131\uc744 \uc904\uc774\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\ub294, \ub354 \uc77c\uad00\ub418\uace0 \uc881\uc740 \uc785\ub3c4 \ubd84\ud3ec\ub97c \uac16\ucd98 \uc81c\ud488\uc744 \uc81c\uacf5\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uacb0\uad6d \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \uacbd\ub3c4, \uc5f4\uc801 \uc548\uc815\uc131, \ub0b4\ud654\ud559\uc131, \uadf8\ub9ac\uace0 \uc870\uc808 \uac00\ub2a5\ud55c \uc785\uc790 \ud2b9\uc131\uc744 \uc2e0\ub8b0\ud560 \uc218 \uc788\uac8c \uacb0\ud569\ud574 \uc81c\uacf5\ud558\uae30 \ub54c\ubb38\uc5d0 \uc5ec\uc804\ud788 \uadf8 \uc785\uc9c0\ub97c \uad73\uac74\ud788 \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud56d\uc0c1 \uac00\uc7a5 \ud2b9\uc774\ud558\uac70\ub098 \ube44\uc2fc \uc120\ud0dd\uc9c0\ub294 \uc544\ub2c8\uc9c0\ub9cc, \uc77c\uad00\ub41c \uace0\uc628 \uc131\ub2a5\uacfc \ud569\ub9ac\uc801\uc778 \ube44\uc6a9\uc774 \uc694\uad6c\ub418\ub294 \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c\ub294 \uc81c\uac00 \uac00\uc7a5 \uba3c\uc800 \uace0\ub824\ud558\ub294 \uc18c\uc7ac \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc9c4\uc815\ud55c \ub178\ud558\uc6b0\ub294 \ud2b9\uc815 \uacf5\uc815\uacfc \uc131\ub2a5 \ubaa9\ud45c\uc5d0 \ub9de\ub294 \uc801\uc808\ud55c \ub4f1\uae09(\uc21c\ub3c4, \uc785\uc790 \ud06c\uae30, \ubc18\uc751\uc131)\uc744 \uc120\uc815\ud558\ub294 \ub370 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc870\uac74\uc774 \uc801\uc808\ud788 \ucda9\uc871\ub420 \ub54c, \uc54c\ub8e8\ubbf8\ub098 \ubd84\ub9d0\uc740 \uc7a5\uae30\uac04\uc758 \uc0dd\uc0b0 \uacf5\uc815\uc5d0\uc11c \ub354 \uc804\ubb38\uc801\uc778 \uc18c\uc7ac\ub4e4\uc870\ucc28 \ub530\ub77c\uc7a1\uae30 \uc5b4\ub824\uc6b4 \uc131\uacfc\ub97c \uc870\uc6a9\ud788 \ub9cc\ub4e4\uc5b4 \ub0c5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"
After more than twenty-five years working with ceramic raw materials, I\u2019ve come to respect alumina powder more than almost any […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[2],"tags":[],"class_list":["post-112","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/posts\/112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/comments?post=112"}],"version-history":[{"count":1,"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/posts\/112\/revisions"}],"predecessor-version":[{"id":113,"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/posts\/112\/revisions\/113"}],"wp:attachment":[{"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/media?parent=112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/categories?post=112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminapowder.net\/ko\/wp-json\/wp\/v2\/tags?post=112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}