Notice of RetractionRelationship between thickness of siliconized layer prepared by electrodeposition and components of molten salts
The siliconized layer on low silicon steel sheet was obtained by electrodeposition in KCl-NaCl-NaF-SiO2 molten salts. Proportion of molten salts was designed using symmetry-simplex method. A regression equation was found to be a better fit for the relationship between thickness of the siliconized layer and salts components. Based on the equation, the thickness isoline was plotted to reveal the influence of salts proportion on thickness. The results showed that NaF content had a significant effect on the thickness of the siliconized layer. The thickness increased gradually with the increase of NaF content. When NaF was 0.4-0.6 mole fraction, the thickness increased remarkably. Furthermore, when the concentration of KCl was kept constant, the ratio of NaF/NaCl was important to control the thickness. The thickness was relatively small as mole fraction ratio NaF/NaCl was about 2:3.
Preparation of Fe-6.5%Si Sheet by Electrochemical Reduction
The characters of molten salt electrodeposition and the history of silicon electrodeposition at high temperature are discussed in this paper.Silicon is deposited on the cathode of Fe-3%Si sheet in FLNAK-Na 2SiF 6 molten salt system by controlling temperature and electric current density. Subsequently , the Fe-6.5%Si sheet is made from Fe-3%Si by annealing diffusion treatment at 1050℃. The technological parameters of silicon electrodeposition are discussed. It is pointed that the electrochemical reduction method is a new technique for preparing Fe-6.5wt%Si sheet.
Evaluation of Impact of Yarn Count and Stitch Length on Pilling, Abrasion, Shrinkage and Tightness Factor of 1 ? 1 Rib Cotton Knitted Fabrics
This study investigates the impact of yarn count and stitch length of 100% cotton knitted fabrics. 1 × 1 ribs structured fabrics were used in this research work. The stitch length 2.50 mm, 2.52 mm, 2.60 mm, 2.70 mm, 2.80 mm and 2.96 mm were used of the yarn count of 26Ne, 28Ne and 36Ne. The areal densities of the grey fabrics were in various amounts. The impacts of yarn count and stitch length were measured concerning pilling resistance, abrasion resistance, and shrinkage and tightness factor. The result showed that the fabric pilling grade decreased while number of cycle increased. Abrasion resistance decreased but length wise shrinkage increased despite the fact that the stitch length increased. The results also exposed that the tightness factor of the fabric increased with the increase of the stitch length in both dyeing and washing state and finished state compared to grey state for the yarn count 26Ne and homogeneous result not found for yarn count 28Ne and 36 Ne. Evaluation of Impact of Yarn Count and Stitch Length on Pilling, Abrasion, Shrinkage and Tightness Factor of 1 × 1 Rib Cotton Knitted Fabrics