钬用于金属卤素灯添加剂、钇铁或钇铝石榴石的添加剂、光纤激光器、光纤放大器、光纤传感器等。用作各种石榴石的掺入剂，制造金属卤素灯等。 氧化钬（III）为白色结晶粉末，是一种稀土金属氧化物。氧化钬（III）具有较高的稳定性和抗化学腐蚀性。它的熔点高达2380°C，密度为8.8 g/cm3。氧化钬（III）可作用生产钬和钬合金的原料、传感器中的磁致伸缩材料以及生产合成燃料的催化剂等。 应用 氧化钬（III）可用作： 制备Ho2O3-PVAfilm的起始材料，以在掺铥光纤激光器（TDFL）型腔中的稳定Q开关脉冲。 甲烷氧化偶联的催化剂。 它还可用作掺杂剂，以制备： 硼酸镉铅玻璃。 金刚石/铜复合材料，以可通过放电等离子烧结（SPS）法去除界面缺陷。 Holmium(III) oxide is a white crystalline powder and is a rare-earth metal oxide. Holmium(III) oxide is a highly stable and resistant to chemical attack. It has a high melting point of 2,380 °C and a high density of 8.8 g/cm3. Holmium(III) oxide is used as a raw material in the production of holmium and holmium alloys, as a magneto strictive material in sensors, and a catalyst in the production of synthetic fuels among other applications. Application Holmium(III)oxide can be used as: A starting material to prepare Ho2O3-PVAfilm for generating stable Q-switching pulses in a thulium-doped fiber laser(TDFL) cavity. A catalyst for oxidative coupling of methane. It can also be used as a dopant in the preparation of: Cadmium lead borate glasses. Diamond/copper composites to eliminate interfacial defects through the spark plasma sintering (SPS) method.