Though the clinoenstatite is a stable phase of the end member MgSiO_3 at lowtemperatures in many experiments,it appears only in meteorites and boninite innature.The ultrastructures of polymorphs of clinoenstatite in m...Though the clinoenstatite is a stable phase of the end member MgSiO_3 at lowtemperatures in many experiments,it appears only in meteorites and boninite innature.The ultrastructures of polymorphs of clinoenstatite in meteorites have beenwell documented(Buseck,P.R.,1975;Buseck,P.R.,1980;Coe,R.S.andMuller,W.F.,1973).Here are reported the different characteristics ofclinoenstatite ultrastructures in boninite.Meanwhile,the observations of the G.P.zones in two bronzites are also presented.展开更多
The Guinier-Preston zone, which has been found in both lunar and terrestrial orthopyroxenes, is a metastable phase of orthopyroxenes with a wollastonite content～25％ and a new pyroxene space-group symmetry Pbc 21. It...The Guinier-Preston zone, which has been found in both lunar and terrestrial orthopyroxenes, is a metastable phase of orthopyroxenes with a wollastonite content～25％ and a new pyroxene space-group symmetry Pbc 21. Its size, distribution, composition and structure may be important indicators of the low-temperature thermal history of orthopyroxene. The ultrastructures of two terrestrial bronzites have been observed under HREM (TEM-100CXII). The size, shape and展开更多
Ⅰ. INTRODUCTION Recently, the basic and applied researches of the macroscopic properties of a-morphous soft magnetic materials have been developed rapidly, especially, the studies on macroscopic fundamental and techn...Ⅰ. INTRODUCTION Recently, the basic and applied researches of the macroscopic properties of a-morphous soft magnetic materials have been developed rapidly, especially, the studies on macroscopic fundamental and technical magnetic properties of high saturation flux density (high B_s, such as Fe-base alloys) and high permeability (high μ, such as Fe-Co base and Fe-Ni base alloys) amorphous alloys have made much progress.展开更多
基金This project was granted finantially by the National Natural Science Foundation of China.
文摘Though the clinoenstatite is a stable phase of the end member MgSiO_3 at lowtemperatures in many experiments,it appears only in meteorites and boninite innature.The ultrastructures of polymorphs of clinoenstatite in meteorites have beenwell documented(Buseck,P.R.,1975;Buseck,P.R.,1980;Coe,R.S.andMuller,W.F.,1973).Here are reported the different characteristics ofclinoenstatite ultrastructures in boninite.Meanwhile,the observations of the G.P.zones in two bronzites are also presented.
文摘The Guinier-Preston zone, which has been found in both lunar and terrestrial orthopyroxenes, is a metastable phase of orthopyroxenes with a wollastonite content～25％ and a new pyroxene space-group symmetry Pbc 21. Its size, distribution, composition and structure may be important indicators of the low-temperature thermal history of orthopyroxene. The ultrastructures of two terrestrial bronzites have been observed under HREM (TEM-100CXII). The size, shape and
文摘Ⅰ. INTRODUCTION Recently, the basic and applied researches of the macroscopic properties of a-morphous soft magnetic materials have been developed rapidly, especially, the studies on macroscopic fundamental and technical magnetic properties of high saturation flux density (high B_s, such as Fe-base alloys) and high permeability (high μ, such as Fe-Co base and Fe-Ni base alloys) amorphous alloys have made much progress.
