( ( ( The preparation ) ( of ( ( heterogeneous ( ( alloys or ) composites ) ) ( from ( powder mixtures ) ) ) ) ) ( ( ( ( ( ( is , ) therefore ) , ) ( not ( possible ( with mixtures ) ) ) ) ( having ( ( ( non-wetting components ) and ) ( pore ( volume ( or ( degassing materials ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN preparation)) (PP (IN of) (NP (NP (JJ heterogeneous) (NNS alloys) (CC or) (NNS composites)) (PP (IN from) (NP (NN powder) (NNS mixtures)))))) (VP (VBZ is) (, ,) (ADVP (RB therefore)) (, ,) (ADJP (RB not) (JJ possible) (PP (IN with) (NP (NNS mixtures)))) (S (VP (VBG having) (NP (NP (JJ non-wetting) (NNS components)) (CC and) (NP (JJ pore) (NN volume) (CC or) (NN degassing) (NNS materials)))))) (. .)))
The preparation of heterogeneous alloys or composites from powder mixtures is, therefore, not possible with mixtures having non-wetting components and pore volume or degassing materials.
(ROOT (S (NP (NNS Heterogeneous)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT a) (NN mixture)) (SBAR (WHNP (WDT that)) (S (VP (VBZ varies) (PP (IN in) (NP (PRP$ its) (NN composition)))))))))) (. .)))