Laser Ablation Synthesis and Properties of Nanocrystalline Oxide Powders

Осипов, В. В.; Платонов, В. В.; Lisenkov, V. V.

doi:10.1007/978-3-319-13188-7_8-1

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…The average output power of the CO 2 laser was 550 W at a repetition rate of 650 Hz pulses with an energy of W = 1.4 J, a peak power of about 9 kW, and a duration of 500 μs at a power level of 0.1. Figure 1a shows a block diagram of the laser complex for preparing nanopowders [28,29]. Laser radiation was focused on the target with a lens, which also served as the entrance window of the evaporation chamber.…”

Section: Preparing Nanopowdersmentioning

confidence: 99%

“…When nanopowders are obtained using both lasers, in addition to nanoparticles, spherical particles with sizes from 0.5 to 150 μm are also formed [29,33], as well as shapeless target fragments of the same size. Fragments are formed after the end of radiation exposure to a specific part of the target due to thermal splitting of the cooling fused layer [30].…”

Section: Preparing Nanopowdersmentioning

confidence: 99%

“…A typical photo of YSZ nanoparticles (a) and the size distribution of nanoparticles of different compositions (b)[29].…”

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confidence: 99%

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From the Laser Plume to the Laser Ceramics

Осипов¹,

Платонов²,

Шитов³

et al. 2021

Advanced Ceramic Materials

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The main stages of preparation of ceramic active elements of solid-state lasers are considered. The physical principles of laser synthesis of nanopowders are described. The features and processes taking place during compaction and compacts sintering are specified. Also we report on the investigation of characteristics of highly transparent ceramics on the basis of nanopowders synthesized in laser plume. It is shown that this approach enables to increase the “orange peel” formation threshold in the ceramics with strongly disordered crystalline structure. It opens the road to relatively simple synthesis technology from oxide materials and application of this ceramics as the gain media with oscillation efficiency higher than 50% and also leads to simplification of the synthesis technology of magnetoactive ceramics and to production of highly transparent YAG samples without the use of sintering heterovalent additives.

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Section: Preparing Nanopowdersmentioning

confidence: 99%