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3D printing, also known as additive manufacturing, has been considered as the next big thing that can potentially spread as cell phone industry. Nowadays, product resolution restricted by material and fabrication process is ranging from 20 to 300 pm and still has the trends toward higher precision. However, tradeoff between time costs and resolution is always a dilemma in Fused Deposition Modeling...
The compressive and tensile strains induced by different substrates on La0.325Pr0.3Ca0.375MnO3 (LPCMO) thin films have been investigated. It is found that the in-plane compressive strain favors the ferromagnetic metallic phase by increasing the hopping amplitude between neighboring elections and decreasing the tilt of the MnO6 octahedron, leading to the weakening of the phase separation. On the other...
In previous work, we reported on the fabrication of a regular template for the controlled two-phase growth of conventional CoPt-SiO2 PMR media. The template consisted of dome-morphology patterned into a Platinum FCC (111) textured thin film. When CoPt-SiO2 was sputtered, the artificially patterned domes acted as sites on which the CoPt grains grew, with the segregant growing within the trenches between...
The development of new permanent magnet materials is of particularly importance since the high-performance Nd2Fe14B are expensive due to the limited reserves of rare earth Nd, Tb, Dy on the earth. In the past several years, much attention has been attracted to the permanent magnet without rare earth[1], such as Zr2Co11, HfCo7 and Mn-based alloys, and excellent performance has been observed. For example,...
The (La1−yPry)1−xCaxMnO3 systems has been extensively studied in recent years as a typical electronic phase separation(PS) system. [1-4] As well known, the average radius of A sites in the ABO3 structure plays a key role in determining the band (W) and electronic characteristics of the perovskite manganites. Uehara et al has found that the chemical replacement of Pr for La (Pr is smaller than La)...
0.95(K0.48Na0.52NbO3)-0.05(LiSbO3) (95KNN-5LS) thin films have been fabricated by pulsed laser deposition (PLD) on Pt/Ti/SiO2/Si substrates. The K-rich in the target and the fabrication parameters on the properties of the films was investigated. The results show that good films can be obtained with the 0.95(K0.48Na0.52NbO3)-0.05(LiSbO3)-0.0228K2CO3 (95KNN-5LS-4.56K) target, and the surface roughness,...
Electroluminescence devices based on nanocrystalline Si/SiO2 multilayers were fabricated and the luminescence can be observed both from vertical and lateral direction. Moreover, P-doped nanocrystalline Si/SiO2 multilayers were prepared and the improved electro-luminescence characteristics were achieved.
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