. . "RIV/61389021:_____/05:00027500!RIV06-AV0-61389021" . . . "Chov\u00E1n\u00ED pr\u00E1\u0161ku Ni-Al za letu p\u0159i jeho plazmov\u00E9m st\u0159\u00EDk\u00E1n\u00ED"@cs . "In-flight behavior of Ni-Al powder during its plasma spraying"@en . . "In-flight behavior of Ni-Al powder during its plasma spraying"@en . "DVS-Verlag" . . "2005-05-02+02:00"^^ . . "3-87155-793-5" . "Chr\u00E1ska, Pavel" . . . . "Proceedings of International Thermal Spray Conference 2005" . . "Ni-Al powder; plasma spraying; Al oxidation; spherical alloy particles; Al2O3 caps"@en . "4"^^ . . "In-flight behavior of Ni-Al powder during its plasma spraying" . "Volen\u00EDk, Karel" . "4"^^ . "Dubsk\u00FD, Ji\u0159\u00ED" . "Z(AV0Z20430508)" . . . "In-flight behavior of Ni-Al powder during its plasma spraying" . "Basel" . . "RIV/61389021:_____/05:00027500" . "Chov\u00E1n\u00ED pr\u00E1\u0161ku Ni-Al za letu p\u0159i jeho plazmov\u00E9m st\u0159\u00EDk\u00E1n\u00ED"@cs . . "524621" . "1175;1178" . "[8F04DDF174EF]" . "Byla sledov\u00E1na sf\u00E9roidizace \u010D\u00E1stic pr\u00E1\u0161ku pseudoslitiny Ni-Al p\u0159i plazmov\u00E9m st\u0159\u00EDk\u00E1n\u00ED. St\u0159edn\u00ED mno\u017Estv\u00ED Al bylo 9,7%. \u010C\u00E1stice pseudoslitiny obsahovaly oblasti slo\u017Een\u00E9 z t\u00E9m\u011B\u0159 \u010Dist\u00FDch prvk\u016F Ni a Al. Experiment\u00E1ln\u00ED v\u00FDsledky ukazuj\u00ED, \u017Ee jsou-li Ni a Al v kontaktu, maj\u00ED za letu v proudu plazmatu tendenci vytvo\u0159it taveninu Ni-Al, ze kter\u00E9 po ztuhnut\u00ED vznikne tuh\u00FD roztok Al v Ni v \u0161irok\u00E9m rozsahu koncentrac\u00ED Al.. Je-li v\u0161ak Al v bezprost\u0159edn\u00EDm styku s plazmatem, kter\u00E9 po roztaven\u00ED \u010D\u00E1stic je u\u017E siln\u011B obohaceno vzdu\u0161n\u00FDm kysl\u00EDkem, tavenina Al oxiduje na taveninu Al2O3. Vzhledem k rozd\u00EDln\u00E9 hustot\u011B tavenin slitiny a oxidu je p\u0159i brzd\u011Bn\u00ED \u010D\u00E1stic transportov\u00E1na tavenina oxidu po povrchu kapky taveniny slitiny k zadn\u00ED \u010D\u00E1sti let\u00EDc\u00ED kapky a po ztuhnut\u00ED vytvo\u0159\u00ED p\u0159ibli\u017En\u011B kulov\u00FD vrchl\u00EDk o men\u0161\u00EDm polom\u011Bru na povrchu v\u011Bt\u0161\u00ED kulovit\u00E9 \u010D\u00E1stice slitiny Ni-Al. Sf\u00E9roidizace pseudoslitiny Ni-Al tedy p\u0159i plazmov\u00E9m st\u0159\u00EDk\u00E1n\u00ED neznamen\u00E1 z\u00E1rove\u0148 homogenizaci chemick\u00E9ho slo\u017Een\u00ED."@cs . "8"^^ . . "D\u00FCsseldorf" . . . . . "Kolman, Blahoslav Jan" . "A Ni-Al pseudo-alloy powder was studied from the point of view of spheroidization during spraying by a water-stabilized plasma gun. The powder particles of irregular shape were conglomerates of elemental Ni and Al, the average Al content being 9.7 %. To conserve the shape and composition of particles flying in the plasma stream, these were trapped in liquid nitrogen. Scanning electron microscopy and X-ray microanalysis were used to obtain information about particle shape and element distribution. Most plasma sprayed particles trapped in liquid nitrogen were composed of a Ni-Al alloy, where the Al content varied in a wide range. Spherical %22caps%22 composed of Al-oxide covered partially their surfaces. It follows that on the interface between molten Ni and Al, the interaction of both components gave rise to a Ni-Al alloy. On the contrary, if Al was exposed to air, it oxidized rapidly during the flight of the particles."@en . "A Ni-Al pseudo-alloy powder was studied from the point of view of spheroidization during spraying by a water-stabilized plasma gun. The powder particles of irregular shape were conglomerates of elemental Ni and Al, the average Al content being 9.7 %. To conserve the shape and composition of particles flying in the plasma stream, these were trapped in liquid nitrogen. Scanning electron microscopy and X-ray microanalysis were used to obtain information about particle shape and element distribution. Most plasma sprayed particles trapped in liquid nitrogen were composed of a Ni-Al alloy, where the Al content varied in a wide range. Spherical %22caps%22 composed of Al-oxide covered partially their surfaces. It follows that on the interface between molten Ni and Al, the interaction of both components gave rise to a Ni-Al alloy. On the contrary, if Al was exposed to air, it oxidized rapidly during the flight of the particles." .