Příprava Sn-Ag-Cu nanoprášků pomocí laserové ablace

Preparation of Sn-Ag-Cu nanopowders via laser ablation

přednáška

en

The paper deals with preparation of Sn-Ag-Cu (SAC solder) nanoparticles by laser ablation technique. Metal nanoparticles are considered as potential candidates for use as solder materials for high temperature applications. Laser ablation is one of the most efficient methods for preparation of nanoparticles. The method consists in the ablation of a solid material by an intense laser radiation, yielding to an ejection of its constituents, and to the formation of nanostructures. Aerosol received by laser ablation was caught on cyclopore etched membrane. Separation of single particles was maked in the solution water-spirit using the ultrasonic shaker for duration of 15 minutes Two-stage replica was prepared to determination the size of nanoparticles and for observation in TEM (Transmission Electron Microscopy).

Tento příspěvek pojednává o přípravě Sn-Ag-Cu (SAC pájka) nanočástic pomocí techniky laserové ablace. Nanočástice kovů jsou považovány jako potenciální kandidáti pro použití v oblasti pájecích materiálů pro vysokoteplotní aplikace. Laserová ablace je jednou z mnoha metod pro přípravu nanočástic kovů. Metoda spočívá v ablaci tuhého materiálu intenzivním laserovým paprskem, pomocí něhož dochází k tvorbě nanostruktur. Aerosol vzniklý laserovou ablací byl zachycen na membránový filtr. Separace jednotlivých částic byla provedena v roztoku voda-líh užitím ultrazvukové třepačky po dobu asi 15 minut. K určení velikosti nanočástic byla připravena dvoustupňová replika pro analýzu v TEM.

The paper deals with preparation of Sn-Ag-Cu (SAC solder) nanoparticles by laser ablation technique. Metal nanoparticles are considered as potential candidates for use as solder materials for high temperature applications. Laser ablation is one of the most efficient methods for preparation of nanoparticles. The method consists in the ablation of a solid material by an intense laser radiation, yielding to an ejection of its constituents, and to the formation of nanostructures. Aerosol received by laser ablation was caught on cyclopore etched membrane. Separation of single particles was maked in the solution water-spirit using the ultrasonic shaker for duration of 15 minutes Two-stage replica was prepared to determination the size of nanoparticles and for observation in TEM (Transmission Electron Microscopy).

bezolovnatá pájka, laserová ablace, TEM

lead-free solder, laser ablation, TEM

09.04.2010

Paris: 2010