Pulsed Laser Deposition of YBa2Cu3O7 Superconducting Film on MgO Templates Spray Pyrolyzed on Hastelloy C276

Abstract

Pulsed laser deposition (PLD) was used to deposit YBCO on MgO-buffered C276 substrates in order to evaluate the quality of the deposited MgO films which were deposited by spray pyrolysis. The characterization of the thin films was done using scanning electron microscopy, atomic force microscopy, electron backscattered diffraction, X-ray diffraction 2θ -scans, rocking curve (ω-scans), phi scan, pole-figure measurements, and AC susceptibility. It was found that c-axis oriented YBCO films were grown on c-axis oriented MgO films which confirm that the deposited YBCO films copied the out-of-plane texture of the spray pyrolyzed MgO buffer. However, MgO and YBCO films have a very weak in-plane texture. The AC susceptibility measurements show that the YBCO films have a broad superconducting transition temperature which may be attributed to the weak in-plane texture.

Spray Pyrolysis of MgO Templates on 321-Austenitic Stainless Steel Substrates for YBa2Cu3O7 Deposition by PLD

“…The AC susceptibility measurements (Fig. 11) showed that YBCO gave broad superconducting transition temperatures with a T C onset of 83.6 K. This is close to what was found by others [19] and to that which was found by us on Hastelloy C276 [23]. This proves that the cheaper 321 steel is a good choice as a substrate for thin film deposition and could be used as an alternative for the expensive C276.…”

“…In our previous work [22] it was found that high concentrations of magnesium nitrate were needed to detect the MgO peak. Besides that, the superconducting properties of the deposited YBCO films were lower compared to those when the acetate precursor was used [23]. Because of that, no further investigation will be carried out on magnesium nitrate precursor and the acetate precursor is to be investigated.…”

“…On the one hand, it was found that the 310 was not suitable for thin film deposition by spray pyrolysis; on the other, stronger (200) MgO peaks were obtained on Hastelloy C276 when using the acetate precursor and at a much lower concentration compared to the nitrate precursor. To evaluate the performance of the films, YBCO was deposited by pulsed laser deposition (PLD) [23]. It was found that only the smoothest MgO films led to the deposition of good textured YBCO films.…”

In situ polyaniline coating of Prussian blue as cathode material for sodium-ion battery

“…1-0239). Sample-A shows the stronger intensity of characteristic peaks than others, which is previously reported that the intensity of the X-ray diffraction (XRD) peaks increases with increasing precursor concentration, temperature and thickness [12][13][14][15]. Electronic supplementary material, figure S1a shows the XRD patterns of Sample-A-precursor and Sample-O-precursor.…”

Enhancing pitting corrosion inhibition of AISI 304 stainless steel using a green frankincense-modified ferric chloride solution

“…However, AISI 3xx SS can be subjected to localized pitting corrosion. Pitting corrosion can be caused by exposure to aggressive chloride anions [41]; it is initiated when chloride anions are introduced into the working environment and reach a critical value, forming a thin layer of chloride ion-rich electrolyte on the stainless steel surface [42]. However, the adsorption of an inhibitor on a steel surface and the formation of a protective film could reduce or inhibit the pitting corrosion, as mentioned earlier.…”