TH81365B - Rare Earth Permanent Magnet - Google Patents
Rare Earth Permanent MagnetInfo
- Publication number
- TH81365B TH81365B TH601000335A TH0601000335A TH81365B TH 81365 B TH81365 B TH 81365B TH 601000335 A TH601000335 A TH 601000335A TH 0601000335 A TH0601000335 A TH 0601000335A TH 81365 B TH81365 B TH 81365B
- Authority
- TH
- Thailand
- Prior art keywords
- rare earth
- magnet
- earth permanent
- grain boundary
- permanent magnet
- Prior art date
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract 4
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract 3
- 229910052771 Terbium Inorganic materials 0.000 claims abstract 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 241000283690 Bos taurus Species 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 229910052793 cadmium Inorganic materials 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 229910052732 germanium Inorganic materials 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052763 palladium Inorganic materials 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 229910052706 scandium Inorganic materials 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- 229910052727 yttrium Inorganic materials 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Abstract
แม่เหล็กถาวรแรร์เอิร์ธอยู่ในรูปของตัวแม่เหล็กสะตุที่มีสารผสม R1aR2bTcAdFeOfMg โดย ที่ F และ R2 ถูกกระจายตัวในลักษณะที่ความเข้มข้นของมันเพิ่มขึ้นโดยเฉลี่ยจากศูนย์กลางไปยัง ผิวของตัวแม่เหล็ก ความเข้มข้นของ R2/(R1+R2) ที่มีในขอบเขตเกรนล้อมรอบเกรนเฟสปฐมภูมิ ของระบบเตตระโกนัล (R1,R1)2T14A ในตัวแม่เหล็กสะตุจะมีค่าเฉลี่ยสูงกว่าความเข้มข้นของ R2/(R1+R2) ที่มีในเกรนเฟสปฐมภูมิ และออกซีฟลูออไรด์ของ (R1+R2) จะอยู่ที่ขอบเขตเกรนใน บริเวณขอบเขตเกรนที่ขยายจากผิวตัวแม่เหล็กไปจนถึงความลึกอย่างน้อย 20 ไมครอน การ ประดิษฐ์นี้ได้ให้แม่เหล็กสะตุ R-Fe-B ซึ่งแสดงสมรรถนะของแม่เหล็กที่สูงในขณะที่ลดปริมาณ การใช้ Tb และ Dy ลงเหลือน้อยที่สุด Rare earth permanent magnets are in the form of a magnet that contains a mixture. R1aR2bTcAdFeOfMg, where F and R2 are dispersed in such a way that their concentrations increase average from the center to the Surface of the magnet The concentrations of R2 / (R1 + R2) contained in the grain boundary surrounding the primary phase grain. In the tetragonal (R1, R1) system, the 2T14A built-in satellites are averaged higher than the concentration of R2 / (R1 + R2) present in the primary phase grain. And the oxyfluoride of (R1 + R2) is at the grain boundary in The grain boundary extending from the surface of the magnet to a depth of at least 20 microns. The invention enabled R-Fe-B magnets which exhibited high magnetic performance while minimizing Tb and Dy consumption.
Claims (1)
Publications (3)
| Publication Number | Publication Date |
|---|---|
| TH81365B true TH81365B (en) | 2006-11-23 |
| TH81365A TH81365A (en) | 2006-11-23 |
| TH63127B TH63127B (en) | 2018-06-21 |
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