The binary system; na 2 Al 2 Si 2 O 8 (nephelite, carnegieite); CaAl 2 Si 2 O 8 (anorthite)

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ternary System Al 2 O 3 – MgO – CaO : Part II , Phase Relationships in the Subsystem Al 2 O 3 – MgAl 2 O 4 – CaAl 4 O 7

Solid-state compatibility and melting relationships in the subsystem Al2O3–MgAl2O4–CaAl4O7 were studied by firing and quenching selected samples located in the isopletal section (CaOzMgO)–Al2O3. The samples then were examined using X-ray diffractomtery, optical microscopy, and scanning and transmission electron microscopies with wavelengthand energy-dispersive spectroscopies, respectively. The ...

متن کامل

2 8 M ay 2 00 4 Critical behavior of O ( 2 ) ⊗ O ( N ) symmetric models

We investigate the controversial issue of the existence of universality classes describing critical phenomena in three-dimensional statistical systems characterized by a matrix order parameter with symmetry O(2)⊗O(N) and symmetry-breaking pattern O(2)⊗O(N)→O(2)⊗O(N − 2). Physical realizations of these systems are, for example, frustrated spin models with noncollinear order. Starting from the fi...

متن کامل

Point-contact Spectroscopy on Rusr 2 Gdcu 2 O 8

We present Point-Contact experiments on polycrystalline RuSr2GdCu2O8 samples. The majority of tunneling curves shows a zero-bias conductance peak, which is modeled by assuming a d-wave pairing symmetry of the superconducting order parameter. The magnetic field dependence of the conductance spectra has been measured in very stable junctions. In some cases, due to the granularity of the samples, ...

متن کامل

2 8 O ct 2 00 8 Interlaced processes on the circle Anthony P . Metcalfe ,

When two Markov operators commute, it suggests that we can couple two copies of one of the corresponding processes. We explicitly construct a number of couplings of this type for a commuting family of Markov processes on the set of conjugacy classes of the unitary group, using a dynamical rule inspired by the RSK algorithm. Our motivation for doing this is to develop a parallel programme, on th...

متن کامل

. SG ] 2 8 O ct 2 00 8 LEGENDRIAN LINKS , CAUSALITY , AND THE LOW CONJECTURE

Let (X m+1 , g) be a globally hyperbolic spacetime with Cauchy surface diffeo-morphic to an open subset of R m. The Legendrian Low conjecture formulated by Natário and Tod says that two events x, y ∈ X are causally related if and only if the Legendrian link of spheres S x , S y whose points are light geodesics passing through x and y is non-trivial in the contact manifold of all light geodesics...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: American Journal of Science

سال: 1912

ISSN: 0002-9599

DOI: 10.2475/ajs.s4-33.198.551