http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Shivakumaraiah (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Chandrakala, H.N.,Ramaraj, B.,Shivakumaraiah,Lee, J.H.,Siddaramaiah Elsevier Sequoia 2013 Journal of alloys and compounds Vol.580 No.-
Polyvinyl alcohol (PVA) films doped with different concentrations viz., 0.5, 1.0, and 2.0wt.% of the carbon coated zinc oxide (C-ZnO) nanoparticles were prepared by solution casting method in order to investigate the effect of C-ZnO addition on the electrical, optical, structural and morphological properties of PVA matrix. The electrical properties such as dielectric constant (ε'), dielectric loss (ε''), dissipation factor (Tan δ), electrical modulus (M', M'') and AC conductivity (σ<SUB>ac</SUB>) of the PVA/C-ZnO nanocomposites have been performed with reference to weight percentage of nanofiller (i.e., 0.5, 1.0, and 2.0wt%) and frequency (20Hz to 1MHz). It is observed that the dielectric constant, dielectric loss, and electrical conductivity gradually decrease with filler concentration. Microstructural property of the nanocomposites is studied by using X-ray diffraction. XRD profiles demonstrated the semi crystalline nature of the composites. SEM photomicrographs of the PVA/C-ZnO nanocomposites reveal the uniform distribution of nanoparticles within the polymer matrix. Differential scanning calorimetry (DSC) thermograms of nanocomposites clearly indicates that the influence of nanofillers on their melting temperature (T<SUB>m</SUB>) is insignificant.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
