摘要：High-entropy alloys(HEAs)contain multiple principal alloying elements,but usually with simple crystal *** are structurally complex phases,but are generally dominated by only one ***,nearequiatomic high-entropy quasicrystals have rarely been reported because they are difficult to prepare experimentally and predict ***,the preparation and crystal structures of near-equiatomic high-entropy quasicrystals have drawn much *** report a quinary decagonal quasicrystal(DQC)with near-equiatomic alloying elements in Al20Si20Mn20Fe20Ga20 melt-spun ribbons,which is the first to our ***,the structural features of the DQC are characterized in *** configurational entropy of both the alloy and DQC satisfies the entropy-based criterion for HEAs,suggesting a high-entropy *** findings provide a new strategy to develop high-entropy quasicrystals.

摘要：目前,生产性服务业与装备制造业融合趋势越来越明显,促进装备制造业的产业升级的作用越来越突出。本文针对装备制造企业的产品特点,对生产性服务业与装备制造业的融合问题进行研究,将生产性服务业与装备制造业在产品价值链上的融合分成4种方式,即发现环节的融合、设计环节的融合、生产环节的融合以及销售环节的融合;并对影响因素和融合效应进行了分析。