Characterization of Cold-Pressed Onion, Parsley, Cardamom, Mullein, Roasted Pumpkin, and Milk Thistle Seed Oils

Practical applications of bulk YBa2Cu3O7−x materials have been limited because of their inadequate critical current density (jc) and poor mechanical properties. Several recent reports have indicated that the addition of Ag to the YBa2Cu3O7−x system is beneficial in improving both mechanical and superconducting properties. However, detailed studies concerning the effect of Ag on the microstructural development of the cermet system have been lacking. Here, we present some observations on the microstructural evolution in the YBa2Cu3O7−x/Ag composite system.The composite samples were prepared by mixing various amounts (2.5 - 50 wt%) AgNO3 in the YBa2Cu3O7−x nitrate precursor solution. These solutions were then spray dried and the resulting powders were either cold pressed or tape cast. The microstructures of the sintered samples were analyzed using SEM (Philips 515) and an analytical TEM (Philips 430T).The SEM micrographs of the compacts with 2.5 and 50 wt% Ag addition sintered at 915°C (below the melting point of Ag) for 1 h in air are displayed in Figs. 1 and 2, respectively.

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Spectroscopic (LC‐ESI‐MS/MS, FT‐IR, NMR) and functional characterization of fruit seed oils extracted with green technology: A comparative study with Prunus cerasus and Punica granatum oils

Journal of Food Processing and Preservation ◽

10.1111/jfpp.15451 ◽

2021 ◽

Author(s):

Bülent Başyiğit ◽

Hidayet Sağlam ◽

İbrahim Hayoğlu ◽

Mehmet Karaaslan

Keyword(s):

Comparative Study ◽

Functional Characterization ◽

Punica Granatum ◽

Green Technology ◽

Prunus Cerasus ◽

Seed Oils ◽

Esi Ms ◽

Ft Ir

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Synthesis and Characterization of Porous ZrO2-Y2O3-TiO2 Ceramics Prepared by Coprecipitation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.727-728.1387 ◽

2012 ◽

Vol 727-728 ◽

pp. 1387-1392 ◽

Cited By ~ 1

Author(s):

Luan M. Medeiros ◽

Fernando S. Silva ◽

Juliana Marchi ◽

Walter Kenji Yoshito ◽

Dolores Ribeiro Ricci Lazar ◽

...

Keyword(s):

Ceramic Composite ◽

High Strength ◽

Ceramic Composites ◽

Rice Starch ◽

X Ray Diffraction ◽

Zirconia Ceramics ◽

Pore Former ◽

X Ray ◽

Cold Pressed

Zirconium dioxide (zirconia) ceramics are known by its high strength and toughness and titanium dioxide (titania) ceramics has outstanding surface properties. The ceramic composite formed between the two oxides are expected to have advantages of both ceramics, especially when its surface area is increased by pores. In this work, ceramic composites of ZrO2-Y2O3-TiO2were synthesized by coprecipitation and rice starch was added as pore former in 10, 20 and 30 wt%. Powders were cold pressed as cylindrical pellets and sintered at 1500 °C for 01 hour and ceramics were characterized by techniques as Archimedes method for density measurements, X-ray diffraction and scanning electron microscopy. Results showed that pores are inhomogeneously distributed through ceramic bodies.

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