JPH0468370B2 - - Google Patents
Info
- Publication number
- JPH0468370B2 JPH0468370B2 JP63319852A JP31985288A JPH0468370B2 JP H0468370 B2 JPH0468370 B2 JP H0468370B2 JP 63319852 A JP63319852 A JP 63319852A JP 31985288 A JP31985288 A JP 31985288A JP H0468370 B2 JPH0468370 B2 JP H0468370B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- yttrium
- oxygen
- alkaline earth
- earth metals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 229910052727 yttrium Inorganic materials 0.000 claims description 16
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 16
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 14
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 11
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- 150000002910 rare earth metals Chemical class 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 description 9
- 239000000523 sample Substances 0.000 description 7
- 229910052788 barium Inorganic materials 0.000 description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- BTGZYWWSOPEHMM-UHFFFAOYSA-N [O].[Cu].[Y].[Ba] Chemical compound [O].[Cu].[Y].[Ba] BTGZYWWSOPEHMM-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Conductive Materials (AREA)
Description
（産業上の利用分野）
本発明は銅合金よりなる高導電性金属材料に関
する。
（従来の技術）
導電用金属材料の導電率は、IACS
（International Annealed Copper Standard国際
焼なまし銅基準）によつて規定され、20℃におけ
る値が採用されており、完全焼なましした銅の値
を導電率100％としている。
従来、一般に電線用などに使用されている純銅
材料の上記IACSの値は100〜101.5％であり、そ
れ以上の値は見出されていない。
（発明が解決しようとする課題）
本発明は上記に鑑みなされたもので、銅を主体
とし若干の他の元素を添加し、従来の純銅材料よ
りIACSの値が優れ、しかも塑性加工性を損なう
ことのない高導電性金属材料を提供することを課
題とするものである。
（課題を解決するための手段）
本発明においては、上記課題を解決するため、
重量基準で、イツトリウムを0.02％〜1.00％、酸
素を0.001％〜0.1％含有させ、残部を銅及び通常
認められる不純物として、高導電性金属材料を構
成し、またイツトリウムを0.02％〜1.00％、酸素
を0.001％〜0.1％、アルカリ土類金属を0.02％〜
1.00％含有させ、残部が銅及び通常認められる不
純物として高導電性金属材料を構成し、さらにイ
ツトリウムを0.02％〜1.00％、酸素を0.001％〜
0.1％、アルカリ土類金属、希土類金属を合計で
0.02％〜1.00含有させ、残部を銅及び通常認めら
れる不純物として高導電性金属材料を構成した。
（作 用）
ここで、イツトリウムを0.02％〜1.00％と限定
したのはイツトリウム0.02％以下では、純銅の場
合を導電率は変わらず、1.00％以上で塑性加工性
を害するためである。酸素、アルカリ土類金属、
希土類金属の含有量を上記のように限定したの
も、同様に下限値以下では純銅の場合と導電率は
変わりなく、上限値以上では塑性加工特性、特に
伸び率を害し、線引き加工が困難になるためであ
る。純銅に他の元素を微量に添加すると導電率
（IACS）が低下すると言われていたが、イツトリ
ウム、アルカリ土類金属、希土類金属を少量添加
し、酸素の量を調整すると純銅を上回る高い導電
率が得られること本発明者は実験において確認し
た。
これは近年イツトリウム−バリウム−銅−酸素
系セラミツクスが臨界温度の高い超伝導体となる
ことが実験的に確認されているのと関連があるも
のと思われる。
（実施例）
つぎに本発明の実施例について説明する。試料
となる材料として、電解銅、金属イツトリウム
粒、金属ランタン粒、バリウム粒を所定の割合に
配合した材料500gを黒鉛ルツボに入れ、10-3mm
Hg真空度にした後、アルゴンガスを0.5atm程度
封入して溶解し、溶湯中に少量の空気を導入して
酸素量の調整を行なつた後、20×20mmの銅製鋳型
に鋳造した。鋳造された材料を面削り後、熱間加
工により径３mmとし、冷間線引きにより径１mmの
線材とした。この線材を100℃〜700℃の間を100
℃間隔で30分間焼なましして、引つ張り強さ、伸
び率、導電率を測定した。比較のために純銅を真
空溶解鋳造した材料を同様に加工し、引つ張り強
さ、伸び率、導電率を測定した。
試料は、純銅を含めて28種類作成した。各試料
の化学成分は第１表に示す通りである。
(Industrial Application Field) The present invention relates to a highly conductive metal material made of a copper alloy. (Conventional technology) The conductivity of conductive metal materials is determined by IACS
(International Annealed Copper Standard), the value at 20℃ is adopted, and the value of fully annealed copper is considered to be 100% conductivity. Conventionally, the above-mentioned IACS value of pure copper materials generally used for electric wires etc. is 100 to 101.5%, and a higher value has not been found. (Problems to be Solved by the Invention) The present invention has been made in view of the above, and consists of copper as the main material and some other elements added, which has a better IACS value than conventional pure copper materials, and which impairs plastic workability. The object of the present invention is to provide a highly conductive metal material that is free from defects. (Means for solving the problems) In the present invention, in order to solve the above problems,
On a weight basis, the highly conductive metal material contains 0.02% to 1.00% yttrium, 0.001% to 0.1% oxygen, and the balance is copper and normally recognized impurities, and also contains 0.02% to 1.00% yttrium. Oxygen from 0.001% to 0.1%, alkaline earth metals from 0.02%
Contains 1.00%, the balance is copper and normally recognized impurities to constitute a highly conductive metal material, and further contains 0.02% to 1.00% yttrium and 0.001% to oxygen.
0.1%, alkaline earth metals, rare earth metals total
A highly conductive metal material was constructed by containing 0.02% to 1.00% and the remainder being copper and normally recognized impurities. (Function) Here, the reason why yttrium is limited to 0.02% to 1.00% is because if yttrium is less than 0.02%, the electrical conductivity will not change compared to pure copper, but if it is more than 1.00%, the plastic workability will be impaired. oxygen, alkaline earth metals,
The reason for limiting the content of rare earth metals as above is that below the lower limit, the electrical conductivity remains the same as that of pure copper, but above the upper limit, the plastic working properties, especially the elongation rate, are impaired and wire drawing becomes difficult. This is to become. It has been said that adding small amounts of other elements to pure copper lowers its electrical conductivity (IACS), but by adding small amounts of yttrium, alkaline earth metals, and rare earth metals and adjusting the amount of oxygen, the electrical conductivity exceeds that of pure copper. The present inventor has confirmed through experiments that the following can be obtained. This seems to be related to the recent experimental confirmation that yttrium-barium-copper-oxygen ceramics are superconductors with high critical temperatures. (Example) Next, an example of the present invention will be described. As a sample material, 500 g of a material containing electrolytic copper, metal yttrium particles, metal lanthanum particles, and barium particles in a predetermined ratio was placed in a graphite crucible, and the size was 10 -3 mm.
After creating a Hg vacuum, 0.5 atm of argon gas was filled in and melted. After adjusting the amount of oxygen by introducing a small amount of air into the molten metal, it was cast into a 20 x 20 mm copper mold. After face cutting the cast material, it was hot worked to a diameter of 3 mm, and cold drawn to a wire rod with a diameter of 1 mm. This wire is heated between 100℃ and 700℃ for 100℃.
The specimens were annealed at ℃ intervals for 30 minutes, and their tensile strength, elongation, and electrical conductivity were measured. For comparison, a material made by vacuum melting and casting pure copper was similarly processed and its tensile strength, elongation rate, and electrical conductivity were measured. Twenty-eight types of samples were created, including pure copper. The chemical components of each sample are shown in Table 1.
【表】
試料No.０は、比較材の純銅、No.１〜８は、イツ
トリウム及び酸素を含有するもの、No.９〜13は、
イツトリウム、酸素に加えて、アルカリ土類金属
としてバリウムを含有するもの、No.14〜21は、イ
ツトリウム、酸素、アルカリ土類金属としてのバ
リウムに加えて、希土類金属としてランタンをさ
らに含有するもの、No.22，23は、イツトリウム、
酸素に加えて、アルカリ土類金属としてカルシウ
ムをさらに含有するもの、No.24，25は、イツトリ
ウム、酸素に加えて、アルカリ土類金属としてバ
リウム及びカルシウムを含有するもの、No.26′は、
イツトリウム、酸素に加えて、アルカリ土類金属
としてカルシウム、希土類金属としてランタムを
さらに含有するもの、No.27，28は、イツトリウ
ム、酸素に加えて、アルカリ土類金属としてバリ
ウム及びカルシウム、希土類金属としてランタン
をさらに含有するものである。
次に、第１表に示す各試料を500℃で焼なまし
した場合の引つ張り強さ、伸び率、導電率を第２
表に示す。[Table] Sample No. 0 is a comparison material of pure copper, Nos. 1 to 8 are those containing yttrium and oxygen, and Nos. 9 to 13 are
Nos. 14 to 21 contain barium as an alkaline earth metal in addition to yttrium and oxygen; Nos. 14 to 21 contain lanthanum as a rare earth metal in addition to yttrium, oxygen, and barium as an alkaline earth metal; No.22 and 23 are Yztrium,
Nos. 24 and 25 further contain calcium as an alkaline earth metal in addition to oxygen, and No. 26' contains yttrium and barium and calcium as alkaline earth metals in addition to oxygen.
Nos. 27 and 28 contain, in addition to yttrium and oxygen, calcium as an alkaline earth metal and lantum as a rare earth metal. It further contains lanthanum. Next, we calculated the tensile strength, elongation, and electrical conductivity of each sample shown in Table 1 by annealing it at 500℃.
Shown in the table.
【表】【table】
【表】
第２表から見て、アルカリ土類金属を所定量含
有する場合及びアルカリ土類金属と希土類金属を
所定量含有する場合は、引つ張り強さの増加をも
たらし、これが機械的特性の改善に有効であるこ
とがわかる。また本発明の実施例の試料No.１〜
５、９〜12、14〜19、22〜24、26、27は、最低
102.7％、最高105.3％の導電率を示し、比較試料
No.０における101.3％より優れていることが明ら
かである。一方塑性加工性に関する伸び率は、試
料試料No.１〜５、９〜12、14〜19、22〜24、26、
27において19.2〜46.8％、引つ張り強さにおいて
は、22.6〜25.8kgf／mm2と相当に高い値を示して
おり、実用上の障害は何ら見出せない。なお、上
記試料の軟化温度も、純銅より200℃〜250℃高
く、耐熱用銅材料としても優れている。
（発明の効果）
以上のように、本発明においては、銅にイツト
リウム、酸素を含有させ、あるいはさらにアルカ
リ土類金属を含有させ、またはさらに希土類金属
を添加することにより、純銅より高い導電率を示
す金属材料を得ることができた。そして、この金
属材料は、線引き加工も容易であり、また耐熱用
銅材料としても優れている。[Table] From Table 2, when containing a certain amount of alkaline earth metal, and when containing a certain amount of alkaline earth metal and rare earth metal, the tensile strength increases, which leads to an increase in mechanical properties. It can be seen that it is effective in improving In addition, sample No. 1 of the example of the present invention
5, 9-12, 14-19, 22-24, 26, 27 are the lowest
Comparison sample showed conductivity of 102.7% and maximum 105.3%
It is clear that this is better than 101.3% in No.0. On the other hand, the elongation rates related to plastic workability are as follows:
27, the tensile strength was 19.2 to 46.8%, and the tensile strength was 22.6 to 25.8 kgf/mm 2 , which were considerably high values, and no practical problems were found. The softening temperature of the above sample is also 200°C to 250°C higher than that of pure copper, making it excellent as a heat-resistant copper material. (Effects of the Invention) As described above, in the present invention, by making copper contain yttrium and oxygen, or further containing an alkaline earth metal, or further adding a rare earth metal, higher conductivity than pure copper can be achieved. We were able to obtain the metal material shown. This metal material is easy to wire-draw and is also excellent as a heat-resistant copper material.
Claims (1)
％、酸素を0.001％〜0.1％含有し、残部が銅及び
通常認められる不純物よりなる高導電性金属材
料。 ２ 重量基準で、イツトリウムを0.02％〜1.00
％、酸素を0.001％〜0.1％、アルカリ土類金属を
0.02％〜1.00％含有し、残部が銅及び通常認めら
れる不純物よりなる高導電性金属材料。 ３ 重量基準で、イツトリウムを0.02％〜1.00
％、酸素を0.001％〜0.1％、アルカリ土類金属、
希土類金属を合計で0.02％〜1.00％含有し、残部
が銅及び通常認められる不純物よりなる高導電性
金属材料。[Claims] 1. Yttrium from 0.02% to 1.00% by weight
%, a highly conductive metal material containing 0.001% to 0.1% oxygen, with the remainder consisting of copper and normally recognized impurities. 2 Yttrium from 0.02% to 1.00% by weight
%, oxygen 0.001%~0.1%, alkaline earth metals
Highly conductive metal material containing 0.02% to 1.00%, with the remainder consisting of copper and normally recognized impurities. 3 Yttrium from 0.02% to 1.00% by weight
%, oxygen 0.001%~0.1%, alkaline earth metals,
A highly conductive metal material containing a total of 0.02% to 1.00% of rare earth metals, with the remainder consisting of copper and normally recognized impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31985288A JPH01283333A (en) | 1987-12-25 | 1988-12-19 | High electric conductive metallic material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32733487 | 1987-12-25 | ||
| JP62-327334 | 1987-12-25 | ||
| JP31985288A JPH01283333A (en) | 1987-12-25 | 1988-12-19 | High electric conductive metallic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01283333A JPH01283333A (en) | 1989-11-14 |
| JPH0468370B2 true JPH0468370B2 (en) | 1992-11-02 |
Family
ID=26569852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31985288A Granted JPH01283333A (en) | 1987-12-25 | 1988-12-19 | High electric conductive metallic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01283333A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997029216A1 (en) * | 1996-02-09 | 1997-08-14 | Brush Wellman Inc. | Alloy c11004 |
| JP5652741B2 (en) * | 2009-11-24 | 2015-01-14 | 住友電気工業株式会社 | Copper wire and method for producing the same |
| CN111455210A (en) * | 2020-04-17 | 2020-07-28 | 金川集团股份有限公司 | Ultra-high conductivity microalloyed copper material and processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148544A (en) * | 1984-08-16 | 1986-03-10 | Sumitomo Metal Mining Co Ltd | High-conductivity copper alloy and low softening temperature |
| JPS62243727A (en) * | 1986-04-16 | 1987-10-24 | Hitachi Cable Ltd | Rolled copper foil for printed circuit board |
| JPS63136537A (en) * | 1986-11-27 | 1988-06-08 | Furukawa Electric Co Ltd:The | Tape-shaped lead for semiconductor |
-
1988
- 1988-12-19 JP JP31985288A patent/JPH01283333A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148544A (en) * | 1984-08-16 | 1986-03-10 | Sumitomo Metal Mining Co Ltd | High-conductivity copper alloy and low softening temperature |
| JPS62243727A (en) * | 1986-04-16 | 1987-10-24 | Hitachi Cable Ltd | Rolled copper foil for printed circuit board |
| JPS63136537A (en) * | 1986-11-27 | 1988-06-08 | Furukawa Electric Co Ltd:The | Tape-shaped lead for semiconductor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01283333A (en) | 1989-11-14 |
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