Search results

All the main diffraction peaks are consistent with the standard JCPDS card of Bi0.5Sb1.5Te3 with rhombohedral structure.
The lattice thermal conductivity kL can be calculated from the formula kL = k - L0sT, where L0 is the Lorenz number, about 1.5´10−8 V2/K2 in non-degenerate semiconductors [6, 16].

Cation exchange capacity (CEC) is the number of negative charges that can bind cations in a material.
The DRX results shown in Fig. 2 indicate that montmorillonite (M) is the predominant phase in bentonite with 2θ values measured at 19.79° and 35.34° (JCPDS card No.29-1499).
SiO2 (Q) was observed at 21.9° and 27.9° (JCPDS card No.46-1045) [23]. 2θ=6.76°, 19.79° and 35.34° represent the characteristic peaks of montmorillonite on the (001), (100) and (110) planes, respectively, which are the main component of bentonite [24,25].

The peaks at approximately 35.8, 41.3 and 60.0 deg. correspond to (111), (200), and (220) peaks of β-SiC, which agrees with the standard value for β-SiC (JCPDS Card No. 0029-1129).The peaks at approximately 28.4 ,47.2 and 56.0 deg. correspond to (111)，(220) and (311) peaks of Silicon.It is indicated that a small amount of polycrystal silicon which didn, t react with carbon remained in the composite.
XRD pattern of RB-SiC and Cf/SiC Table 1 Mechanical properties of RB-SiC and Cf/SiC composites at room temperature Materials Number of tests Archimedes, density [g/cm3] Theoretical density [g/cm3] Strength [MPa] Toughness [MPa m1/2] RB-SiC 10 2.91 2.94 286 3.65 Cf/SiC 10 2.84 2.87 231 5.28 Although raw carbon fibers had a high aspect ratio and they were prone to be twisted during mixing, the wet ball-milling technique combined supersonic dispersion could effectively prevent fibers from aggregating.

In citrate solution, copper electrodeposition is highly inhibited and results in a small number of large hemispherical crystals located mainly on top of the solid surface [6], leading the plating layer finer, that means lower resistance coating can be obtained.
Compared with standard JCPDS card of copper powder, we can know the coating we obtained under this process is face-centered cubic crystal structure, with the diffraction peaks of (111), (200) and (220), and the planar spacing of all the diffraction peaks are very close to standard copper interplanar space.

Results and discussion Structural properties The XRD patterns of the ZnO and ZnO@Cr powders showed only a set of diffraction lines ascribed to the wurtzite structure, which was identified from JCPDS card number 36-14-51.

After dried and sieved through a 120-mesh sieve, the mixture was placed into a graphite reactor with a number of small holes on the wall to allow a controlled gas exchange between the reactor chamber and the surrounding atmosphere.
The XRD peaks were identified by matching to the JCPDS-ICDD data cards.

These peaks are indexed to crystalline structure of β-ZnMoO4 (JCPDS card no. 25-1024), corresponding to the indices of crystalline planes respectively [5].
To obtain a better understanding of the mechanistic details of these β-ZnMoO4-assisted photodegradation of the VBR dye with UV or Visible light irradiation, a large number of intermediates of the process were separated, identified, and characterized by a HPLC-PDA-ESI-MS, but they won’t be discussed here.

So far, a large number of efforts have been made to improve the photocatalytic activity of TiO2 through extending the absorption band into the visible-light region.
All peaks can be indexed to the typical perovskite structure (JCPDS card #: 71-2494), indicating the successful synthesis of BiFeO3.

Magnetite has a cubic system as confirmed by JCPDS Card.
Acknowledgment We thank the Ministry of Research, Technology and Higher Education of Indonesia for PDUPT research grant, with the contract number 82/UN1/DITLIT/DIT-LIT/LT/2018.

Meanwhile, peak position appeared at 31.41° and 36.97° initially appeared as calcination temperature reached to 900-1000 oC, are plane of AlZnO (JCPDS card number 96-900-7020).