Numerical simulation programs
Simulation codes for physical property of minerals
First principles simulation codes for physical property of minerals under high pressure and temperature based on quantum mechanics. Those include codes of the multiple configuration sampling method for multicomponent systems and of phonon calculation for iron-oxides systems.
Simulation codes for mantle dynamics
A series of numerical programs for simulating the convecting flows in the mantles of the Earth and terrestrial planets based on computational fluid and/or continuum dynamics. The suite includes separate programs for various computational geometries ranging from 2-D Cartesian to 3-D spherical shell. Each numerical program, developed by ourselves from scratch, successfully runs on almost all computing environments, thanks to its conformity to the Fortran 90 standard.
“HIME-DIA”, Nano-Polycrystalline Diamond (NPD)
“HIME-DIA”, Nano-Polycrystalline Diamond (NPD)
NPD is a binder-less sintered nanodiamonds (~50 nm) synthesized by direct conversion of graphite under high P-T at GRC first in 2003. It is optically transparent and has extremely high hardness exceeding that of single-crystalline diamond. The use of 6000 ton press (Botchan) has expanded the size of NPD to 1 cm, which is a thousand times bigger in volume than the original product in 2003. Large NPD can be adopted for anvils for DAC, multianvil and Drickamer apparatuses. We will prepare anvils with desired shapes and sizes by laser-processing upon request for collaborative researches.
Machining tools・Others equipments
■ Numerically-controlled machine (CAMM3, MDX)
■ Surface grinding machine
■ High precision drilling machine
■ Wire saw
■ Automatic polisher
■ Fiber laser cutting system for small area (Nihon Optel Co., FL-LM 01)
■ Fiber laser cutting system (MIYACHI, ML-7111A)
■ Diamond grinder (Syntek Co., MCBS-320)
■ Ultrasonic cutter (NDK-KK Co., UM-150CS)
■ Numerically controlled machining center (Mectron, MTV-T310; KIRA, PCV-30)
■ Digital microscope (KEYENCE, VHX-2000)
■ Atmosphere furnace (Chugai Prox Co., ATCM50-100/1700, MAX 1700℃)
■ Atmosphere furnace (small type) (Nikkato Co., TS-4B06, MAX1850℃)
■ Micro Vickers hardness tester (Shimazu Co., HMV-G21DT)
etc.