A ceramic represented by: (1-m)PbSc.sub.0.5xTa.sub.0.5+xO.sub.3-mPbMg.sub.0.5yW.sub.0.5+yO.sub.3, wherein, 0.03m0.60; x, y0.1 and 0x+y0.13 when 0x, y; 0.1x<0 and 0y0.1 when 0>x and 0y; 0.1x, y and 0.13x+y<0 when 0x and 0>y; and 0<x0.1 and 0.1y<0 when 0<x and 0>y.

A method includes the following steps: a) the production of a slip including more than 4% and less than 50% of ceramic particles and including: b) a first particulate fraction including of orientable particles having a median length L50 and representing more than 1% of the ceramic particles, and c) a second particulate fraction having a median length D50 at least ten times shorter than L50 and representing more than 1% of the ceramic particles, the first and second particulate fractions together representing more than 80% of all of the ceramic particles, in volume percentages based on the total quantity of ceramic particles; d) oriented freezing of the slip by moving a solidification front at a lower speed than the speed of encapsulation of the ceramic particles; e) elimination of the crystals of the solidified liquid phase of the block; and f) optionally sintering.

An electrocaloric effect element includes a laminate including an electrode layer mainly including Pt and a ceramic layer that are stacked, in which the ceramic layer has a perovskite structure and mainly includes a ceramic including Pb, Sc, and Ta, where a content ratio of Sc is y, a content ratio of Ta is 1y, and a range of the y is about 0.450yabout 0.495.

The present disclosure provides a ceramic material for a thermal barrier coating and a manufacturing method thereof. A chemical composition of the ceramic material is LaYbZrCeO7. The ceramic material is manufactured by doping LaO1.5, YbO1.5 and CeO2 into ZrO2. A mole ratio of LaO1.5, YbO1.5, CeO2 and ZrO2 is 1:1:1:1. The manufactured ceramic material is in a composite phase structure mainly including a pyrochlore phase and a fluorite phase. The ceramic material according to the present disclosure can effectively inhibit corrosion penetration of molten CMAS in a high temperature environment, which reduces or avoids ceramic cracking and peeling. This better maintains microstructural integrity of the ceramic surface, thereby extending service life of ceramics.

The present disclosure provides a ceramic material for a thermal barrier coating and a manufacturing method thereof. A chemical composition of the ceramic material is LaYbZrCeO7. The ceramic material is manufactured by doping LaO1.5, YbO1.5 and CeO2 into ZrO2. A mole ratio of LaO1.5, YbO1.5, CeO2 and ZrO2 is 1:1:1:1. The manufactured ceramic material is in a composite phase structure mainly including a pyrochlore phase and a fluorite phase. The ceramic material according to the present disclosure can effectively inhibit corrosion penetration of molten CMAS in a high temperature environment, which reduces or avoids ceramic cracking and peeling. This better maintains microstructural integrity of the ceramic surface, thereby extending service life of ceramics.

A method of manufacturing ceramic composite material comprises forming a combination of flowable metal oxide precursor (102), which is water-insoluble, and electroceramic powder (104) for covering surfaces of the electroceramic particles (500) with the metal oxide precursor (102), the electroceramic powder (104). A major fraction of the particles (500) has particle diameters within a range 50 m to 200 m, and a minor fraction of the particles has diameters smaller than the lower limit of said range, the major fraction having a variety of particle diameters. Then pressure 100 MPa to 500 MPa is applied to said combination, and said combination is exposed, under the pressure, to a heat treatment, which has a maximum temperature within 100 C. to 500 C. for a predefined period for forming the ceramic composite material.