la2o3
1.Hydrothermal treatment and La2O3 modification can only improve p-DEB selectivity slightly.
2.TiB2-Al2O3 Multiphase ceramics with Y2O3-La2O3 as sintering aids are fabricated by hot pressing.
3.The friction and wear tests of composite layers were also carried out. It is found that the concentration of embedded La2O3 particles reaches up to 3.1 wt% and the codeposited-La2O3 content in the composite deposit is markedly affected by the La2O3 particle concentration in the electrolyte and then the current density.
4.Lanthanum zirconate(La2Zr2O7,LZ) and CeO2-La2O3-ZrO2(LCZ) composite ceramic powders were prepared by the chemical precipitation.
5.The influence of the thickness of SiO2 and La2O3 on the tunneling current is given to compare much different thickness of SiO2 and La2O3 tunneling current on the same equivalent oxide thickness (EOT) condition.
6.The results showed that a La2O3 CeO2 solid solution was facile to form by La3+ dissolution into CeO2 lattice.
7.The samples doped La2O3+Nb2O5 as donors and doped MnCO3 as acceptor have advantage of high nonlinear coefficient ( a >8) and wider firing temperature.
8.The results show that Fe2O3/La2O3/γ-A12O3 catalyst in which carrier γ-Al2O3 is modified by La2O3 exhibits much stronger active component-support interaction, stabilizes the FeO (II) phase and thus it is more difficult to be reduced to cc-Fe.
9.The dielectric constant of SBTN ceramics decreases and the Curie temperature drops to the room temperature with increasing content of La2O3.
10.Er3+ -doped TeO2-BaO (Li2O, Na2O)-La2O3 tellurite glasses system was prepared and their density, characteristic temperatures and optical properties were determined and investigated.
