Perovskite lanthanum strontium manganese oxide (LSMO, strontium-substituted lanthanum manganite) La_0.7Sr_0.3MnO₃ nanoparticles were synthesized via the low-temperature calcination of the precursor, which was prepared using a mechanochemical route. A powder mixture of lanthanum chloride, strontium chloride, manganese chloride and sodium carbonate was high-energy milled by a planetary ball mill under semiwet (moist) conditions to obtain the precursor. To study the mechanochemical effects on the formation of LSMO, a thermogravimetric (TG) analysis was conducted for the precursors prepared under various conditions; the precursors and the intermediates formed during calcination were identified by X-ray diffraction (XRD). The calcination of the milled precursor at 600 °C resulted in the formation of LSMO nanoparticles with good induction heating properties. The LSMO/hydroxyapatite composites exhibited rapid temperature increases in an AC magnetic field. The obtained results demonstrate that the LSMO nanoparticles and LSMO/hydroxyapatite composites are promising candidates for magnetic hyperthermia treatments.

钙钛矿镧锶锰氧化物（LSMO，锶取代镧镧锰矿）La _0.7 Sr _0.3 MnO ₃通过使用机械化学途径制备的前体的低温煅烧来合成纳米颗粒。通过行星式球磨机在半湿（潮湿）条件下高能研磨氯化镧，氯化锶，氯化锰和碳酸钠的粉末混合物，以获得前体。为了研究机械化学作用对LSMO形成的影响，对在各种条件下制备的前体进行了热重分析（TG）。通过X射线衍射（XRD）鉴定煅烧过程中形成的前体和中间体。研磨后的前驱体在600°C下煅烧，导致形成具有良好感应加热性能的LSMO纳米颗粒。LSMO /羟基磷灰石复合材料在交流磁场中显示出快速的温度升高。