Abstract:
The present invention provides an Ni-base dual multi-phase intermetallic compound alloy which has a dual multi-phase microstructure comprising a primary precipitate L1 2 phase and an (L1 2 + D0 22 ) eutectoid microstructure, and which comprises: more than 5 atomic % and up to 13 atomic % of Al; at least 9.5 atomic % and less than 17.5 atomic % of V; more than 0 atomic % and up to 12.5 atomic % of Nb; more than 0 atomic % and up to 12.5 atomic % of C; and a remainder comprising Ni.
Abstract:
The present invention provides an Ni-base dual multi-phase intermetallic compound alloy which has a dual multi-phase microstructure including: a primary precipitate L1 2 phase, and an (L1 2 + D0 22 ) eutectoid microstructure, and which comprises more than 5 atomic % and up to 13 atomic % of Al; at least 9.5 atomic % and less than 17.5 atomic % of V; between 0 atomic % and 5.0 atomic % inclusive of Nb; more than 0 atomic % and up to 12.5 atomic % of Ti; more than 0 atomic % and up to 12.5 atomic % of C; and a remainder comprising Ni.
Abstract:
The present invention provides an Ni-based intermetallic compound alloy having excellent hardness. The present invention provides an Ni-based dual multi-phase intermetallic compound alloy comprising Ni as a main component, and 5 to 12 atomic % of Al, 11 to 17 atomic % of V and 1 to 5 atomic % of Re, and having a dual multi-phase microstructure including a primary precipitate L1 2 phase and a (L1 2 + D0 22 ) eutectoid microstructure.
Abstract:
Provided are: a novel chiral 4-boronophenylalanine (BPA) derivative; a method for producing the derivative; and a method for producing 18 F-2-fluoro-4-borono-L-phenylalanine ( 18 F-labeled BPA; 18F-BPA) using the derivative. A compound represented by formula (1) is prepared. In the formula, R represents BR 3 R 4 , BX 3 - or BX 3 - M + (wherein X represents a halogen atom, and M + represents a monovalent monoatomic cation, a polyatomic cation or a complex cation); R 1 represents a hydrogen atom or a protecting group PG1; R 2 represents a hydrogen atom or a protecting group PG2; R 3 and R 4 independently represent OH, or R 3 , R 4 and B together form a ring that serves as a protecting group; and Y represents a halogen atom, NO 2 , NH 2 , Sn(R 6 ) 3 , N=N-NR 7 R 8 , OSO 2 R 9 , NR 10 R 11 , a substituted or unsubstituted phenyliodo group or a substituted or unsubstituted heterocyclic iodo group. The compound is reacted with a fluorination reagent to prepare 18 F-labeled BPA.
Abstract:
The purpose of the present invention is to provide a novel method for producing cereulide and a derivative thereof; an intermediate for cereulide; and a novel cereulide derivative. A novel didepsipeptide, a novel tetradepsipeptide, a novel octadepsipeptide and a novel dodecadepsipeptide are prepared. A linear precursor of cereulide or a derivative thereof, which is composed of any one of the novel depsipeptides, is cyclized by forming an intramolecular amide bond.
Abstract:
A catalyst according to the present invention exhibits a catalytic action to a methanol decomposition reaction or a hydrocarbon steam-reforming reaction in a short time. The present invention provides a catalyst for producing hydrogen gas, using an Ni 3 Si-based intermetallic compound.