Fabrication of Al Nano Powders by Pulsed Wire Evaporation (PWE) Method

Geun Hee Lee; Joong Hak Park; Chang Kyu Rhee; Whung Whoe Kim

Journal of Industrial and Engineering Chemistry, Vol.9, No.1, 71-75, January, 2003

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Fabrication of Al Nano Powders by Pulsed Wire Evaporation (PWE) Method

Geun Hee Lee, Joong Hak Park, Chang Kyu Rhee^†, and Whung Whoe Kim

Nuclear materials development team, Korea Atomic Energy Research Institute, Daejeon 305-600, Korea

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Nano-sized Al powders were synthesized by the Pulsed Wire Evaporation (PWE) method. The wire, which was fed continuously into a chamber filled with Ar gas, was exploded into nano powders by high pulsed current and voltage. After the nano powders were synthesized, they were classified by sizes using cyclone and various kinds of filters. We passivated the powder surface with a thin oxide layer to stabilize at room temperature. The size and shape of the nano powders were investigated by TEM. XRD was conducted for phase analysis and grain size determination. XPS and BET analyses were conducted for the investigation of the oxide layer on the Al powder and specific surface area, respectively. From the TEM observation, it was found that the Al nano powder was spherical shape of 80 - 120 nm diameter with the thickness of the oxide layer of 2 -3 nm. The Al phase was crystalline with FCC structure, on the other hand the oxide layer was an amorphous state.

Keywords:pulsed wire evaporation;Al nano powder;specific surface area;crystalline Al;amorphous oxide

[References]

Ting L, Gronskey R, J. Mater. Res., 3, 1367 (1988)
Jukui T, Oobuchi T, Ikuhara Y, Ohara S, Kodera K, J. Am. Ceram. Soc., 80, 261 (1997)
Hahn H, Averback RS, J. Appl. Phys., 67, 1113 (1990)
Ye LL, Quan MX, Nanostruct. Mater., 5, 2 (1995)
Kim KD, Lee JB, Kim HT, J. Ind. Eng. Chem., 7(3), 153 (2001)
Song YJ, Kim S, J. Ind. Eng. Chem., 7(3), 183 (2001)
Ivanov V, Kotov YA, Samatov OH, Bhme B, Karow HU, Schumacher G, Nanostruct. Mater., 6, 287 (1995)
Kotov YA, Yavorovsky A, Fisika I, Chimiaobrabotki Materialov, 4, 24 (1978)
Tepper F, Powder Metall., 43, 320 (2000)
Kotov YA, Avarkevich EI, Beketov IV, Demina TM, Muzarkaev AM, Samatov OM, Key Eng. Mater., 132-136, 173 (1977)
Glazunov GP, Seriya Atomnoye Materialovedeniye, 1, 21 (1978)
Kotov YA, Yavorovskii NA, Fizika I, Khimmiya Obrabotki Materialov, 4, 24 (1978)
Beketov IB, Kotov YA, Murzakaev AM, Samatov OM, Volkov VP, Bohme R, Schumacher G, Proc. 4th Eur. Ceram. Soc. Conf., pp. 77-82, Italy (1995)
Beketov IB, Kotov YA, Murzakaev AM, Samatov OM, Volkov VP, Bohme R, Schumacher G, Mater. Sci. Forum, 225-227, 913 (1996)
Sanchez-Lopez JC, Caballero A, Fernandez A, J. Eur. Ceram. Soc., 18, 1198 (1998)

[Referenced By]

[1] Ting L, Gronskey R, J. Mater. Res., 3, 1367 (1988)

[2] Jukui T, Oobuchi T, Ikuhara Y, Ohara S, Kodera K, J. Am. Ceram. Soc., 80, 261 (1997)

[3] Hahn H, Averback RS, J. Appl. Phys., 67, 1113 (1990)

[4] Ye LL, Quan MX, Nanostruct. Mater., 5, 2 (1995)

[5] Kim KD, Lee JB, Kim HT, J. Ind. Eng. Chem., 7(3), 153 (2001)

[6] Song YJ, Kim S, J. Ind. Eng. Chem., 7(3), 183 (2001)

[7] Ivanov V, Kotov YA, Samatov OH, Bhme B, Karow HU, Schumacher G, Nanostruct. Mater., 6, 287 (1995)

[8] Kotov YA, Yavorovsky A, Fisika I, Chimiaobrabotki Materialov, 4, 24 (1978)

[9] Tepper F, Powder Metall., 43, 320 (2000)

[10] Kotov YA, Avarkevich EI, Beketov IV, Demina TM, Muzarkaev AM, Samatov OM, Key Eng. Mater., 132-136, 173 (1977)

[11] Glazunov GP, Seriya Atomnoye Materialovedeniye, 1, 21 (1978)

[12] Kotov YA, Yavorovskii NA, Fizika I, Khimmiya Obrabotki Materialov, 4, 24 (1978)

[13] Beketov IB, Kotov YA, Murzakaev AM, Samatov OM, Volkov VP, Bohme R, Schumacher G, Proc. 4th Eur. Ceram. Soc. Conf., pp. 77-82, Italy (1995)

[14] Beketov IB, Kotov YA, Murzakaev AM, Samatov OM, Volkov VP, Bohme R, Schumacher G, Mater. Sci. Forum, 225-227, 913 (1996)

[15] Sanchez-Lopez JC, Caballero A, Fernandez A, J. Eur. Ceram. Soc., 18, 1198 (1998)