M0.2Ca0.8TiO3∶Pr3+(M=Mg2+, Sr2+, Ba2+, Zn2+) long persistence red phosphors were prepared by solid state reaction. The influence of the partially replacing Ca2
The phase transformation behaviors of two kinds of magnetic shape memory alloys Ni50Mn25+xGa25-x and Ni50Mn29Ga21-xTbx were studied. When the composition of Ni