KR100839613B1 - 카본나노튜브를 활용한 복합소결재료 및 그 제조방법 - Google Patents
카본나노튜브를 활용한 복합소결재료 및 그 제조방법 Download PDFInfo
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- KR100839613B1 KR100839613B1 KR1020070023505A KR20070023505A KR100839613B1 KR 100839613 B1 KR100839613 B1 KR 100839613B1 KR 1020070023505 A KR1020070023505 A KR 1020070023505A KR 20070023505 A KR20070023505 A KR 20070023505A KR 100839613 B1 KR100839613 B1 KR 100839613B1
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 328
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 319
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 316
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 200
- 238000005245 sintering Methods 0.000 claims abstract description 182
- 238000000034 method Methods 0.000 claims abstract description 132
- 229910052751 metal Inorganic materials 0.000 claims abstract description 89
- 239000002184 metal Substances 0.000 claims abstract description 89
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 30
- 239000012298 atmosphere Substances 0.000 claims description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 26
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 25
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 23
- 238000005275 alloying Methods 0.000 claims description 18
- 239000011261 inert gas Substances 0.000 claims description 17
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- 229910021529 ammonia Inorganic materials 0.000 claims description 15
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 13
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 13
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- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 13
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
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- 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 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
- C22C2026/002—Carbon nanotubes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/701—Integrated with dissimilar structures on a common substrate
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- Y10S977/734—Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
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Abstract
Description
소결온도 | 밀도(g/㎤) | 경도(Hv=10) |
100℃ | 6.2 | - |
6.4 | - | |
6.6 | - | |
200℃ | 6.2 | 측정불가 |
6.4 | 측정불가 | |
6.6 | 측정불가 | |
300℃ | 6.2 | 측정불가 |
6.4 | 측정불가 | |
6.6 | 측정불가 | |
400℃ | 6.2 | 10 |
6.4 | 10 | |
6.6 | 12 | |
500℃ | 6.2 | 16 |
6.4 | 17 | |
6.6 | 22 |
분말명 | 소결온도 | 경도(Hv=10) |
AHC100.29 | 750℃ | 70 |
900℃ | 78 | |
1000℃ | 90 | |
1100℃ | 104 | |
ABC100.30 | 750℃ | 86 |
900℃ | 101 | |
1000℃ | 120 | |
1100℃ | 121 | |
DAB | 750℃ | 76 |
900℃ | 85 | |
1000℃ | 112 | |
1100℃ | 127 | |
DAE | 750℃ | 76 |
900℃ | 85 | |
1000℃ | 100 | |
1100℃ | 122 | |
PASC60 | 750℃ | 82 |
900℃ | 105 | |
1000℃ | 142 | |
1100℃ | 158 | |
KAP | 750℃ | 68 |
순동 | 750℃ | 38 |
분말명 | 소결온도 | 인장강도(kgf/mm2) |
AHC100.29 | 750℃ | 10.65 |
900℃ | 12.45 | |
1000℃ | 14.14 | |
1100℃ | 14.32 | |
ABC100.30 | 750℃ | 7.33 |
900℃ | 14.79 | |
1000℃ | 15.04 | |
1100℃ | 16.09 | |
DAB | 750℃ | 4.98 |
900℃ | 12.88 | |
1000℃ | 16.47 | |
1100℃ | 18.62 | |
DAE | 750℃ | 6.64 |
900℃ | 12.57 | |
1000℃ | 18.77 | |
1100℃ | 22.81 | |
PASC60 | 750℃ | 2.16 |
900℃ | 8.03 | |
1000℃ | 22.87 | |
1100℃ | 27.63 | |
KAP | 750℃ | 11.85 |
순동 | 750℃ | 1.06 |
분말명 | 소결온도 | 인성 부가전(kgf/mm2) | 인성 부가후(kgf/mm2) | ||
인장강도 (kgf/mm2) | 신율 (%) | 인장강도 (kgf/mm2) | 신율(%) | ||
AHC100.29 | 1000℃ | 14.14 | 1 미만 | 14.09 | 7.40 |
1100℃ | 14.32 | 1 미만 | 13.68 | 12.72 | |
ABC100.30 | 1000℃ | 15.04 | 1 미만 | 19.64 | 10.04 |
1100℃ | 16.09 | 1 미만 | 16.16 | 14.52 | |
DAB | 1000℃ | 16.47 | 1 미만 | 19.88 | 11.04 |
1100℃ | 18.62 | 1 미만 | 21.93 | 12.20 | |
DAE | 1000℃ | 18.77 | 1 미만 | 23.61 | 9.88 |
1100℃ | 22.81 | 1 미만 | 25.64 | 10.84 | |
PASC60 | 1000℃ | 22.87 | 1 미만 | 19.15 | 7.92 |
1100℃ | 27.63 | 1 미만 | 25.99 | 8.96 |
분말명 | 실시예 2의 결과 | 실시예 3의 결과 | |||
인장강도 (kgf/mm2) | 신율 (%) | 초기 소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | |
AHC100.29 | 13.68 | 12.72 | 900℃ | 15.04 | 9.28 |
1000℃ | 17.00 | 11.54 | |||
1100℃ | 17.39 | 12.12 | |||
ABC100.30 | 16.16 | 14.52 | 900℃ | 16.60 | 10.76 |
1000℃ | 17.55 | 13.89 | |||
1100℃ | 20.07 | 14.23 | |||
DAB | 21.93 | 12.20 | 900℃ | 34.34 | 9.97 |
1000℃ | 35.23 | 11.10 | |||
1100℃ | 35.71 | 11.98 | |||
DAE | 25.64 | 10.84 | 900℃ | 37.23 | 9.65 |
1000℃ | 40.68 | 10.56 | |||
1100℃ | 43.75 | 11.03 | |||
PASC60 | 25.99 | 8.96 | 900℃ | 27.76 | 7.64 |
1000℃ | 30.74 | 8.88 | |||
1100℃ | 31.75 | 9.23 |
분말명 | 소결온도 | 실시예 1 | 실시예 6 | ||
인장강도 (kgf/mm2) | 신율 (%) | 인장강도 (kgf/mm2) | 신율 (%) | ||
PASC60 | 1100℃ | 27.63 | 1 미만 | 39.40 | 8.67 |
분말명 | 실시예 6의 결과 | 실시예 7의 결과 | ||||
소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | 재소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | |
PASC60 | 1100℃ | 39.40 | 8.67 | 600℃ | 40.28 | 13.87 |
1100℃ | 46.86 | 14.70 |
분말명 | 인장강도 (kgf/mm2) | |
실시예 1의 결과 | 실시예 7의 결과 | |
PASC60 | 27.63 | 23.45 |
DAE | 22.81 | 19.87 |
분말명 | 실시예 3의 결과 | 실시예 9의 결과 | ||||
소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | 재소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | |
PASC60 | 1100℃ | 31.75 | 9.23 | 600℃ | 22.23 | 7.68 |
1100℃ | 34.52 | 9.73 | ||||
DAE | 1100℃ | 43.75 | 11.03 | 600℃ | 19.36 | 12.34 |
1100℃ | 34.73 | 11.79 |
분말명 | 인장강도 (kgf/mm2) | ||
실시예 1의 결과 | 실시예 6의 결과 | 실시예 11의 결과 | |
PASC60 | 27.63 | 39.40 | 32.05 |
DAE | 22.81 | - | 27.81 |
분말명 | 소결온도 | 실시예 9의 결과 | 실시예 12의 결과 | ||
인장강도 (kgf/mm2) | 신율 (%) | 인장강도 (kgf/mm2) | 신율 (%) | ||
PASC60 | 600℃ | 22.23 | 7.68 | 35.25 | 12.07 |
1100℃ | 34.52 | 9.73 | 42.19 | 12.10 | |
DAE | 600℃ | 19.36 | 12.34 | 37.40 | 14.00 |
1100℃ | 34.73 | 11.79 | 54.78 | 13.20 |
분말명 | 소결온도 | 실시예 12의 결과 | 실시예 13의 결과 | ||
인장강도 (kgf/mm2) | 신율 (%) | 인장강도 (kgf/mm2) | 신율 (%) | ||
PASC60 | 600℃ | 35.25 | 12.07 | 37.85 | 10.46 |
1100℃ | 42.19 | 12.10 | 44.54 | 10.69 | |
DAE | 600℃ | 37.40 | 14.00 | 39.42 | 12.25 |
1100℃ | 54.78 | 13.20 | 56.59 | 11.68 |
분말명 | 재소결온도 | 실시예 3의 결과 | 실시예 14의 결과 | ||
인장강도 (kgf/mm2) | 신율 (%) | 인장강도 (kgf/mm2) | 신율 (%) | ||
PASC60 | 1100℃ | 31.75 | 9.23 | 29.76 | 1% 미만 |
DAE | 1100℃ | 43.75 | 11.03 | 32.75 | 1% 미만 |
분말명 | 소결온도 | 실시예 2의 결과 | 실시예 15의 결과 | ||
인장강도 (kgf/mm2) | 신율 (%) | 인장강도 (kgf/mm2) | 신율 (%) | ||
PASC60 | 1100℃ | 25.99 | 8.96 | 34.05 | 5.28 |
DAE | 1100℃ | 25.64 | 10.84 | 34.60 | 8.44 |
분말명 | 실시예 15의 결과 | 실시예 16의 결과 | ||||
소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | 재소결온도 | 인장강도 (kgf/mm2) | 신율 (%) | |
PASC60 | 1100℃ | 34.05 | 5.28 | 600℃ | 37.13 | 11.10 |
1100℃ | 39.47 | 10.23 | ||||
DAE | 1100℃ | 34.60 | 8.44 | 600℃ | 43.07 | 13.27 |
1100℃ | 58.70 | 13.73 |
재질명 | 인장강도 (kgf/mm2) | ||
기존 소결품 | 카본나노튜브만 생성한 소결품 | 재소결한 소결품 | |
SMF4040M | 42.29 (연신율:1.2%이상) | 52.05 (연신율:5%수준) | 63.64 (연신율:10%수준) |
Claims (12)
- 금속분말에 카본나노튜브 분산액을 혼합하고 불활성 가스 분위기에서 300℃ 이하의 온도로 가열하고 건조하여 금속분말에 카본나노튜브가 결합된 모합금을 제조하는 단계;상기 모합금을 성형 후 소결하여 카본나노튜브를 성장 또는 합금화하는 단계;상기 소결품의 기공에 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 카본나노튜브(탄화물나노입자 포함)를 생성시키거나, 또는 소결품의 기공에 카본나노튜브가 분산된 유기용액을 함침하고 200℃ 이하의 온도로 열을 가하여 카본나노튜브를 결합시키는 단계; 및상기 소결품에 소결공정과 카본나노튜브 생성 공정이나 카본나노튜브 함침 결합 공정을 반복 실시하여 기계적 특성을 강화하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합소결재료의 제조방법
- 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 금속분말에 카본나노튜브(탄화물나노입자 포함)를 생성시키는 단계;상기 카본나노튜브가 생성된 금속분말을 성형 후 소결하여 카본나노튜브를 성장 또는 합금화하는 단계;상기 소결품의 기공에 카본나노튜브를 생성시키거나, 또는 소결품의 기공에 카본나노튜브가 분산된 유기용액을 함침하고 200℃ 이하의 온도로 열을 가하여 카본나노튜브를 결합시키는 단계; 및상기 소결품에 소결공정과 카본나노튜브 생성 공정이나 카본나노튜브 함침 결합 공정을 반복 실시하여 기계적 특성을 강화하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합소결재료의 제조방법
- 금속분말을 성형후 성형품의 기공에 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 카본나노튜브(탄화물나노입자 포함)를 생성시키거나, 또는 성형품의 기공에 카본나노튜브가 분산된 유기용액을 함침하고 200℃ 이하의 온도로 열을 가하여 성형품의 기공에서 금속분말과 카본나노튜브를 결합시키는 단계;상기 카본나노튜브가 생성되거나 카본나노튜브가 결합된 성형품을 소결하여 카본나노튜브를 성장 또는 합금화하는 단계;상기 소결품의 기공에 카본나노튜브를 생성시키거나 카본나노튜브를 함침하여 결합시키는 단계; 및상기 소결품에 소결공정과 카본나노튜브 생성 공정이나 카본나노튜브 함침 결합 공정을 반복 실시하여 기계적 특성을 강화하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합소결재료의 제조방법
- 금속분말을 성형후 소결한 소결 완성품의 기공에 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 카본나노튜브(탄화물나노입자 포함)를 생성시키거나, 또는 소결 완성품의 기공에 카본나노튜브가 분산된 유기용액을 함침하고 200℃ 이하의 온도로 열을 가하여 소결 완성품의 기공에서 금속입자와 카본나노튜브를 결합시키는 단계;상기 카본나노튜브가 생성되거나 카본나노튜브가 결합된 소결품을 재소결하여 카본나노튜브를 성장 또는 합금화하는 단계;상기 소결품의 기공에 카본나노튜브를 생성시키거나 카본나노튜브를 함침하여 결합시키는 단계; 및상기 소결품에 소결공정과 카본나노튜브 생성 공정이나 카본나노튜브 함침 결합 공정을 반복 실시하여 기계적 특성을 강화하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합소결재료의 제조방법
- 금속분말에 카본나노튜브 분산액을 혼합하고 불활성 가스 분위기에서 300℃ 이하의 온도로 가열하고 건조하여 금속분말에 카본나노튜브가 결합된 모합금을 제조하는 단계, 또는 금속분말에 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 카본나노튜브(탄화물나노입자 포함)를 생성시키는 단계;상기 모합금 또는 카본나노튜브가 생성된 금속분말에 다른 금속분말 또는 세라믹 재료를 혼합하는 단계;상기 혼합물을 성형 후 소결하여 카본나노튜브를 성장 또는 합금화하는 단계;상기 소결품의 기공에 카본나노튜브가 분산된 유기용액을 함침하고 200℃ 이하의 온도로 열을 가하여 카본나노튜브를 결합시키거나 카본나노튜브를 생성시키는 단계; 및상기 소결품에 소결공정과 카본나노튜브 생성 공정이나 카본나노튜브 함침 결합 공정을 반복 실시하여 기계적 특성을 강화하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합소결재료의 제조방법
- 금속분말과 세라믹 재료를 혼합하는 단계;상기 혼합물을 성형하거나 성형 후 소결하는 단계;상기 성형품이나 소결품의 기공에 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 카본나노튜브(탄화물나노입자 포함)를 생성시키거나, 또는 성형품이나 소결품의 기공에 카본나노튜브가 분산된 유기용액을 함침하고 200℃ 이하의 온도로 열을 가하여 성형품이나 소결품의 기공에서 금속입자와 카본나노튜브를 결합시키는 단계;상기 성형품이나 소결품을 소결하여 카본나노튜브를 성장 또는 합금화하는 단계;상기 소결품에 소결공정과 카본나노튜브 생성 공정이나 카본나노튜브 함침 결합 공정을 반복 실시하여 기계적 특성을 강화하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합소결재료의 제조방법
- 제1항 내지 제6항 중 어느 한 항에 있어서,상기 카본나노튜브를 결합시키거나 카본나노튜브(탄화물나노입자 포함)를 생성시키는 금속분말은 Fe, Ni, Co, W, Si 분말, 또는 Fe, Ni, Co, W, Si가 합금화된 합금(Alloy)분말인 것을 특징으로 하는 복합소결재료의 제조방법.
- 제1항 내지 제6항 중 어느 한 항에 있어서,상기 카본나노튜브를 함침시키거나 카본나노튜브(탄화물나노입자 포함)를 생성시키는 성형품 혹은 소결품의 매트릭스(Matrix) 성분은 Fe, Ni, Co, W, Si 분말과 Fe, Ni, Co, W, Si가 합금화된 합금(Alloy) 분말인 것을 특징으로 하는 복합소결재료의 제조방법.
- 삭제
- 금속분말에 카본나노튜브 분산액을 혼합하고 불활성 가스 분위기에서 300℃ 이하의 온도로 가열하고 건조하여 금속분말에 카본나노튜브가 결합된 모합금을 제조하거나, 또는 금속분말에 산성용액(HF용액, 나이탈 또는 인산)과 카본기를 가지고 있는 액체나 기체(암모니아, 탄산가스, 탄산수, 메탄가스, 메탄올, 아세틸렌 또는 벤젠)를 투입하여 불활성 가스 분위기에서 1200℃ 이하의 온도에서 카본나노튜브(탄화물나노입자 포함)를 생성하는 단계;상기 모합금이나 카본나노튜브가 생성된 금속분말과 고분자 재료를 혼합하는 단계;상기 혼합물을 가열장치에 의해 용융하여 카본나노튜브를 성장시키는 단계;상기 혼합 용융물을 사출 성형하는 단계; 및상기 사출 성형품을 숙성하는 단계;로 이루어진 것을 특징으로 하는 카본나노튜브를 활용한 복합고분자재료의 제조방법.
- 제10항에 있어서,상기 카본나노튜브를 결합시키거나 카본나노튜브(탄화물나노입자 포함)를 생성시키는 금속분말은 Fe, Ni, Co, W, Si 분말, 또는 Fe, Ni, Co, W, Si가 합금화된 합금(Alloy)분말인 것을 특징으로 하는 복합고분자재료의 제조방법.
- 삭제
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US8506922B2 (en) | 2013-08-13 |
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US20100051881A1 (en) | 2010-03-04 |
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